Atomoxetine HCl (Strattera)
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Atomoxetine HCl (Strattera)

STRATTERA®
(atomoxetine hydrochloride)

WARNING

SUICIDAL IDEATION IN CHILDREN AND ADOLESCENTS STRATTERA (atomoxetine) increased the risk of suicidal ideation in short-term studies in children or adolescents with Attention-Deficit/Hyperactivity Disorder (ADHD). Anyone considering the use of STRATTERA in a child or adolescent must balance this risk with the clinical need. Co-morbidities occurring with ADHD may be associated with an increase in the risk of suicidal ideation and/or behavior. Patients who are started on therapy should be monitored closely for suicidality (suicidal thinking and behavior), clinical worsening, or unusual changes in behavior. Families and caregivers should be advised of the need for close observation and communication with the prescriber. STRATTERA is approved for ADHD in pediatric and adult patients. STRATTERA is not approved for major depressive disorder.

Pooled analyses of short-term (6 to 18 weeks) placebo-controlled trials of STRATTERA in children and adolescents (a total of 12 trials involving over 2200 patients, including 11 trials in ADHD and 1 trial in enuresis) have revealed a greater risk of suicidal ideation early during treatment in those receiving STRATTERA compared to placebo. The average risk of suicidal ideation in patients receiving STRATTERA was 0.4% (5/1357 patients), compared to none in placebo-treated patients (851 patients). No suicides occurred in these trials [see WARNINGS AND PRECAUTIONS].

DRUG DESCRIPTION

STRATTERA® (atomoxetine HCl) is a selective norepinephrine reuptake inhibitor. Atomoxetine HCl is the R(-) isomer as determined by X-ray diffraction. The chemical designation is (-)-N-Methyl-3-phenyl-3-(o-tolyloxy)-propylamine hydrochloride. The Molecular formula is C17H21NO•HCl, which corresponds to a molecular weight of 291.82. The chemical structure is:

STRATTERA® (atomoxetine hydrochloride) Structural Formula Illustration

Atomoxetine HCl is a white to practically white solid, which has a solubility of 27.8 mg/mL in water.

STRATTERA capsules are intended for oral administration only.

Each capsule contains atomoxetine HCl equivalent to 10, 18, 25, 40, 60, 80, or 100 mg of atomoxetine. The capsules also contain pregelatinized starch and dimethicone. The capsule shells contain gelatin, sodium lauryl sulfate, and other inactive ingredients. The capsule shells also contain one or more of the following:

FD&C Blue No. 2, synthetic yellow iron oxide, titanium dioxide, red iron oxide. The capsules are imprinted with edible black ink.

What are the possible side effects of atomoxetine (Strattera)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop taking atomoxetine and call your doctor at once if you have a serious side effect such as:

  • chest pain, shortness of breath, fast or uneven heartbeats;
  • feeling like you might pass out;
  • unusual thoughts or behavior, aggression, hallucinations (seeing things that are not there);
  • nausea, pain in your upper stomach, itching, loss of appetite, dark urine, clay-colored stools, jaundice...

Read All Potential Side Effects and See Pictures of Strattera »

What are the precautions when taking atomoxetine hcl (Strattera)?

Before taking atomoxetine, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: glaucoma (narrow angle).

Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver disease, heart disease (e.g., high blood pressure, fast/irregular heartbeat or long QT syndrome, cardiomyopathy, structural heart abnormalities, past heart attacks), family history of irregular heartbeat (cardiac sudden death, QT...

Read All Potential Precautions of Strattera »

Last reviewed on RxList: 6/29/2012
This monograph has been modified to include the generic and brand name in many instances.

INDICATIONS

Attention-Deficit/Hyperactivity Disorder (ADHD)

STRATTERA is indicated for the treatment of Attention-Deficit/Hyperactivity Disorder (ADHD).

The efficacy of STRATTERA Capsules was established in seven clinical trials in outpatients with ADHD: four 6 to 9-week trials in pediatric patients (ages 6 to 18), two 10-week trial in adults, and one maintenance trial in pediatrics (ages 6 to 15) [see Clinical Studies].

Diagnostic Considerations

A diagnosis of ADHD (DSM-IV) implies the presence of hyperactive-impulsive or inattentive symptoms that cause impairment and that were present before age 7 years. The symptoms must be persistent, must be more severe than is typically observed in individuals at a comparable level of development, must cause clinically significant impairment, e.g., in social, academic, or occupational functioning, and must be present in 2 or more settings, e.g., school (or work) and at home. The symptoms must not be better accounted for by another mental disorder.

The specific etiology of ADHD is unknown, and there is no single diagnostic test. Adequate diagnosis requires the use not only of medical but also of special psychological, educational, and social resources. Learning may or may not be impaired. The diagnosis must be based upon a complete history and evaluation of the patient and not solely on the presence of the required number of DSM-IV characteristics.

For the Inattentive Type, at least 6 of the following symptoms must have persisted for at least 6 months: lack of attention to details/careless mistakes, lack of sustained attention, poor listener, failure to follow through on tasks, poor organization, avoids tasks requiring sustained mental effort, loses things, easily distracted, forgetful. For the Hyperactive-Impulsive Type, at least 6 of the following symptoms must have persisted for at least 6 months: fidgeting/squirming, leaving seat, inappropriate running/climbing, difficulty with quiet activities, “on the go,” excessive talking, blurting answers, can't wait turn, intrusive. For a Combined Type diagnosis, both inattentive and hyperactive-impulsive criteria must be met.

Need for Comprehensive Treatment Program

STRATTERA is indicated as an integral part of a total treatment program for ADHD that may include other measures (psychological, educational, social) for patients with this syndrome. Drug treatment may not be indicated for all patients with this syndrome. Drug treatment is not intended for use in the patient who exhibits symptoms secondary to environmental factors and/or other primary psychiatric disorders, including psychosis. Appropriate educational placement is essential in children and adolescents with this diagnosis and psychosocial intervention is often helpful. When remedial measures alone are insufficient, the decision to prescribe drug treatment medication will depend upon the physician's assessment of the chronicity and severity of the patient's symptoms.

DOSAGE AND ADMINISTRATION

Acute Treatment

Dosing of children and adolescents up to 70 kg body weight

STRATTERA should be initiated at a total daily dose of approximately 0.5 mg/kg and increased after a minimum of 3 days to a target total daily dose of approximately 1.2 mg/kg administered either as a single daily dose in the morning or as evenly divided doses in the morning and late afternoon/early evening. No additional benefit has been demonstrated for doses higher than 1.2 mg/kg/day [see Clinical Studies].

The total daily dose in children and adolescents should not exceed 1.4 mg/kg or 100 mg, whichever is less.

Dosing of children and adolescents over 70 kg body weight and adults

STRATTERA should be initiated at a total daily dose of 40 mg and increased after a minimum of 3 days to a target total daily dose of approximately 80 mg administered either as a single daily dose in the morning or as evenly divided doses in the morning and late afternoon/early evening. After 2 to 4 additional weeks, the dose may be increased to a maximum of 100 mg in patients who have not achieved an optimal response. There are no data that support increased effectiveness at higher doses [see Clinical Studies].

The maximum recommended total daily dose in children and adolescents over 70 kg and adults is 100 mg.

Maintenance/Extended Treatment

It is generally agreed that pharmacological treatment of ADHD may be needed for extended periods. The benefit of maintaining pediatric patients (ages 6-15 years) with ADHD on STRATTERA after achieving a response in a dose range of 1.2 to 1.8 mg/kg/day was demonstrated in a controlled trial. Patients assigned to STRATTERA in the maintenance phase were generally continued on the same dose used to achieve a response in the open label phase. The physician who elects to use STRATTERA for extended periods should periodically reevaluate the long-term usefulness of the drug for the individual patient [see Clinical Studies].

General Dosing Information

STRATTERA may be taken with or without food.

STRATTERA can be discontinued without being tapered.

STRATTERA capsules are not intended to be opened, they should be taken whole [see PATIENT INFORMATION].

The safety of single doses over 120 mg and total daily doses above 150 mg have not been systematically evaluated.

Dosing in Specific Populations

Dosing adjustment for hepatically impaired patients

For those ADHD patients who have hepatic insufficiency (HI), dosage adjustment is recommended as follows: For patients with moderate HI (Child-Pugh Class B), initial and target doses should be reduced to 50% of the normal dose (for patients without HI). For patients with severe HI (Child-Pugh Class C), initial dose and target doses should be reduced to 25% of normal [see Use In Specific Populations].

Dosing adjustment for use with a strong CYP2D6 inhibitor or in patients who are known to be CYP2D6 PMs

In children and adolescents up to 70 kg body weight administered strong CYP2D6 inhibitors, e.g., paroxetine, fluoxetine, and quinidine, or in patients who are known to be CYP2D6 PMs, STRATTERA should be initiated at 0.5 mg/kg/day and only increased to the usual target dose of 1.2 mg/kg/day if symptoms fail to improve after 4 weeks and the initial dose is well tolerated.

In children and adolescents over 70 kg body weight and adults administered strong CYP2D6 inhibitors, e.g., paroxetine, fluoxetine, and quinidine, STRATTERA should be initiated at 40 mg/day and only increased to the usual target dose of 80 mg/day if symptoms fail to improve after 4 weeks and the initial dose is well tolerated.

HOW SUPPLIED

Dosage Forms And Strengths

Each capsule contains atomoxetine HCl equivalent to 10 mg (Opaque White, Opaque White), 18 mg (Gold, Opaque White), 25 mg (Opaque Blue, Opaque White), 40 mg (Opaque Blue, Opaque Blue), 60 mg (Opaque Blue, Gold), 80 mg (Opaque Brown, Opaque White), or 100 mg (Opaque Brown, Opaque Brown) of atomoxetine.

STRATTERA® Capsules 10 mga 18 mga 25 mga 40 mga 60 mga 80 mga 100 mga
Color Opaque White, Opaque White Gold, Opaque White Opaque Blue, Opaque White Opaque Blue, Opaque Blue Opaque Blue, Gold Opaque Brown, Opaque White Opaque Brown, Opaque Brown
Identification LILLY 3227 LILLY 3238 LILLY 3228 LILLY 3229 LILLY 3239 LILLY 3250 LILLY 3251
  10 mg 18 mg 25 mg 40 mg 60 mg 80 mg 100 mg
NDC Codes:
Bottles of 30 0002-3227-30 0002-3238-30 0002-3228-30 0002-3229-30 0002-3239-30 0002-3250-30 0002-3251-30
aAtomoxetine base equivalent.

Storage and Handling

Store at 25°C (77°F); excursions permitted to 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature].

Eli Lilly and Company, Indianapolis, IN 46285, USA. Revised: 08/2011

Last reviewed on RxList: 6/29/2012
This monograph has been modified to include the generic and brand name in many instances.

SIDE EFFECTS

Clinical Trials Experience

STRATTERA was administered to 5382 children or adolescent patients with ADHD and 1007 adults with ADHD in clinical studies. During the ADHD clinical trials, 1625 children and adolescent patients were treated for longer than 1 year and 2529 children and adolescent patients were treated for over 6 months.

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

Child and Adolescent Clinical Trials

Reasons for discontinuation of treatment due to adverse reactions in child and adolescent clinical trials

In acute child and adolescent placebo-controlled trials, 3.0% (48/1613) of atomoxetine subjects and 1.4% (13/945) placebo subjects discontinued for adverse reactions. For all studies, (including open-label and long-term studies), 6.3% of extensive metabolizer (EM) patients and 11.2% of poor metabolizer (PM) patients discontinued because of an adverse reaction. Among STRATTERA-treated patients, irritability (0.3%, N=5); somnolence (0.3%, N=5); aggression (0.2%, N=4); nausea (0.2%, N=4); vomiting (0.2%, N=4); abdominal pain (0.2%, N=4); constipation (0.1%, N=2); fatigue (0.1%, N=2); feeling abnormal (0.1%, N=2); and headache (0.1%, N=2) were the reasons for discontinuation reported by more than 1 patient.

Seizures

STRATTERA has not been systematically evaluated in pediatric patients with seizure disorder as these patients were excluded from clinical studies during the product's premarket testing. In the clinical development program, seizures were reported in 0.2% (12/5073) of children whose average age was 10 years (range 6 to 16 years). In these clinical trials, the seizure risk among poor metabolizers was 0.3% (1/293) compared to 0.2% (11/4741) for extensive metabolizers.

Commonly observed adverse reactions in acute child and adolescent, placebo-controlled trials

Commonly observed adverse reactions associated with the use of STRATTERA (incidence of 2% or greater) and not observed at an equivalent incidence among placebo-treated patients (STRATTERA incidence greater than placebo) are listed in Table 2. Results were similar in the BID and the QD trial except as shown in Table 3, which shows both BID and QD results for selected adverse reactions based on statistically significant Breslow-Day tests. The most commonly observed adverse reactions in patients treated with STRATTERA (incidence of 5% or greater and at least twice the incidence in placebo patients, for either BID or QD dosing) were: nausea, vomiting, fatigue, decreased appetite, abdominal pain, and somnolence (see Tables 2 and 3).

Additional data from ADHD clinical trials (controlled and uncontrolled) has shown that approximately 5 to 10% of pediatric patients experienced potentially clinically important changes in heart rate ( ≥ 20 beats per min) or blood pressure ( ≥ 15 to20 mm Hg) [see CONTRAINDICATIONS and WARNINGS AND PRECAUTIONS].

Table 2: Common Treatment–Emergent Adverse Reactions Associated with the Use of STRATTERA in Acute (up to 18 weeks) Child and Adolescent Trials

Adverse Reactiona Percentage of Patients Reporting Reaction
STRATTERA
(N=1597)
Placebo
(N=934)
Gastrointestinal Disorders
  Abdominal painb 18 10
  Vomiting 11 6
  Nausea 10 5
General Disorders and Administration Site Conditions
  Fatigue 8 3
  Irritability 6 3
  Therapeutic response unexpected 2 1
Investigations
  Weight decreased 3 0
Metabolism and Nutritional Disorders
  Decreased appetite 16 4
  Anorexia 3 1
Nervous System Disorders
  Headache 19 15
  Somnolencec   11 4
  Dizziness 5 2
Skin and Subcutaneous Tissue Disorders
  Rash 2 1
aReactions reported by at least 2% of patients treated with atomoxetine, and greater than placebo. The following reactions did not meet this criterion but were reported by more atomoxetine-treated patients than placebo-treated patients and are possibly related to atomoxetine treatment: blood pressure increased, early morning awakening, flushing, mydriasis, sinus tachycardia, asthenia, palpitations, mood swings, constipation. The following reactions were reported by at least 2% of patients treated with atomoxetine, and equal to or less than placebo: pharyngolaryngeal pain, insomnia (insomnia includes the terms, insomnia, initial insomnia, middle insomnia). The following reaction did not meet this criterion but shows a statistically significant dose relationship: pruritus.
bAbdominal pain includes the terms: abdominal pain upper, abdominal pain, stomach discomfort, abdominal discomfort, epigastric discomfort.
cSomnolence includes the terms: sedation, somnolence.

Table 3: Common Treatment-Emergent Adverse Reactions Associated with the Use of STRATTERA in Acute (up to 18 weeks) Child and Adolescent Trials

Adverse Reaction Percentage of Patients Reporting Reaction from BID Trials Percentage of Patients Reporting Reaction from QD Trials
STRATTERA
(N=715)
Placebo
(N=434)
STRATTERA
(N=882)
Placebo
(N=500)
Gastrointestinal Disorders
  Abdominal paina 17 13 18 7
  Vomiting 11 8 11 4
  Nausea 7 6 13 4
  Constipationb 2 1 1 0
General Disorders
  Fatigue 6 4 9 2
Psychiatric Disorders
  Mood swingsc 2 0 1 1
aAbdominal pain includes the terms: abdominal pain upper, abdominal pain, stomach discomfort, abdominal discomfort, epigastric discomfort.
bConstipation didn't meet the statistical significance on Breslow-Day test but is included in the table because of pharmacologic plausibility.
cMood swings didn't meet the statistical significance on Breslow-Day test at 0.05 level but p-value was < 0.1 (trend).

The following adverse reactions occurred in at least 2% of PM patients and were either twice as frequent or statistically significantly more frequent in PM patients compared with EM patients: insomnia (15% of PMs, 10% of EMs); weight decreased (7% of PMs, 4% of EMs); constipation (7% of PMs, 4% of EMs); depression1 (7% of PMs, 4% of EMs); tremor (5% of PMs, 1% of EMs); excoriation (4% of PMs, 2% of EMs); conjunctivitis (3% of PMs, 1% of EMs); syncope (3% of PMs, 1% of EMs); early morning awakening (2% of PMs, 1% of EMs); mydriasis (2% of PMs, 1% of EMs).

Adult Clinical Trials

Reasons for discontinuation of treatment due to adverse reactions in acute adult placebo-controlled trialsIn the acute adult placebo-controlled trials, 11.3% (61/541) atomoxetine subjects and 3.0% (12/405) placebo subjects discontinued for adverse reactions. Among STRATTERA-treated patients, insomnia (0.9%, N=5); nausea (0.9%, N=5); chest pain (0.6%, N=3); fatigue (0.6%, N=3); anxiety (0.4%, N=2); erectile dysfunction (0.4%, N=2); mood swings (0.4%, N=2); nervousness (0.4%, N=2); palpitations (0.4%, N=2); and urinary retention (0.4%, N=2) were the reasons for discontinuation reported by more than 1 patient.

Seizures STRATTERA has not been systematically evaluated in adult patients with a seizure disorder as these patients were excluded from clinical studies during the product's premarket testing. In the clinical development program, seizures were reported on 0.1% (1/748) of adult patients. In these clinical trials, no poor metabolizers (0/43) reported seizures compared to 0.1% (1/705) for extensive metabolizers.

Commonly observed adverse reactions in acute adult placebo-controlled trials Commonly observed adverse reactions associated with the use of STRATTERA (incidence of 2% or greater) and not observed at an equivalent incidence among placebo-treated patients (STRATTERA incidence greater than placebo) are listed in Table 4. The most commonly observed adverse reactions in patients treated with STRATTERA (incidence of 5% or greater and at least twice the incidence in placebo patients) were: constipation, dry mouth, nausea, fatigue, decreased appetite, insomnia, erectile dysfunction, urinary hesitation and/or urinary retention and/or dysuria, dysmenorrhea, and hot flush (see Table 4).

Additional data from ADHD clinical trials (controlled and uncontrolled) has shown that approximately 5 to 10% of adult patients experienced potentially clinically important changes in heart rate ( ≥ 20 beats per min) or blood pressure ( ≥ 15 to20 mm Hg) [see CONTRAINDICATIONS and WARNINGS AND PRECAUTIONS].

Table 4: Common Treatment-Emergent Adverse Reactions Associated with the Use of STRATTERA in Acute (up to 25 weeks) Adult Trials

Adverse Reactiona
System Organ Class/Adverse Reaction
Percentage of Patients Reporting Reaction
STRATTERA
(N=540)
Placebo
(N=402)
Cardiac Disorders
  Palpitations 3 1
Gastrointestinal Disorders
  Dry mouth 21 7
  Nausea 21 5
  Constipation 9 3
  Abdominal painb 7 5
  Dyspepsia 4 2
  Vomiting 3 2
General Disorders and Administration Site Conditions
  Fatigue 9 4
  Chills 3 1
  Therapeutic response unexpected 3 1
  Feeling jittery 2 0
Investigations
  Weight decreased 2 1
Metabolism and Nutritional Disorders
  Decreased appetite 11 2
Nervous System Disorders
  Dizziness 6 4
  Somnolencec 4 3
  Paraesthesia 3 1
  Sinus headache 3 1
  Tremor 2 0
Psychiatric Disorders
  Insomniad 15 7
  Libido decreased 4 2
  Sleep disorder 3 1
Renal and Urinary Disorders
  Urinary hesitation and/or urinary retention 7 1
  Dysuria 3 0
Reproductive System and Breast Disorders
  Erectile dysfunctione 9 1
  Dysmenorrheaf 6 2
  Ejaculation delayede and/or ejaculation disordere 3 1
  Menstruation irregularf 2 0
Skin and Subcutaneous Tissue Disorders
  Hyperhidrosis 4 1
  Rash 2 1
Vascular Disorders
  Hot flush 8 1
aReactions reported by at least 2% of patients treated with atomoxetine, and greater than placebo. The following reactions did not meet this criterion but were reported by more atomoxetine-treated patients than placebo-treated patients and are possibly related to atomoxetine treatment: early morning awakening, peripheral coldness, tachycardia, prostatitis, testicular pain, and orgasm abnormal. The following reactions were reported by at least 2% of patients treated with atomoxetine, and equal to or less than placebo: headache, pharyngolaryngeal pain, irritability.
bAbdominal pain includes the terms: abdominal pain upper, abdominal pain, stomach discomfort, abdominal discomfort, epigastric discomfort.
cSomnolence includes the terms: sedation, somnolence.
dInsomnia includes the terms: insomnia, initial insomnia, middle insomnia.
eBased on total number of males (STRATTERA, N=326; placebo, N=260).
fBased on total number of females (STRATTERA, N=214; placebo, N=142).

Male and female sexual dysfunctionAtomoxetine appears to impair sexual function in some patients. Changes in sexual desire, sexual performance, and sexual satisfaction are not well assessed in most clinical trials because they need special attention and because patients and physicians may be reluctant to discuss them. Accordingly, estimates of the incidence of untoward sexual experience and performance cited in product labeling are likely to underestimate the actual incidence. Table 4 above displays the incidence of sexual side effects reported by at least 2% of adult patients taking STRATTERA in placebo-controlled trials.

There are no adequate and well-controlled studies examining sexual dysfunction with STRATTERA treatment. While it is difficult to know the precise risk of sexual dysfunction associated with the use of STRATTERA, physicians should routinely inquire about such possible side effects.

Postmarketing Spontaneous Reports

The following adverse reactions have been identified during post approval use of STRATTERA. Unless otherwise specified, these adverse reactions have occurred in adults and children and adolescents. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Cardiovascular system — QT prolongation, syncope.

Peripheral vascular effects — Raynaud's phenomenon

General disorders and administration site conditions — Lethargy.

Nervous system disorders — Hypoaesthesia; paraesthesia in children and adolescents; sensory disturbances; tics.

Psychiatric disorders — Depression and depressed mood; anxiety.

Seizures — Seizures have been reported in the postmarketing period. The postmarketing seizure cases include patients with pre-existing seizure disorders and those with identified risk factors for seizures, as well as patients with neither a history of nor identified risk factors for seizures. The exact relationship between STRATTERA and seizures is difficult to evaluate due to uncertainty about the background risk of seizures in ADHD patients.

Skin and subcutaneous tissue disorders — Hyperhidrosis.

Urogenital system — Male pelvic pain; urinary hesitation in children and adolescents; urinary retention in children and adolescents.

1Depression includes the following terms: depression, major depression, depressive symptoms, depressed mood, dysphoria.

Read the Strattera (atomoxetine hcl) Side Effects Center for a complete guide to possible side effects »

DRUG INTERACTIONS

Monoamine Oxidase Inhibitors

With other drugs that affect brain monoamine concentrations, there have been reports of serious, sometimes fatal reactions (including hyperthermia, rigidity, myoclonus, autonomic instability with possible rapid fluctuations of vital signs, and mental status changes that include extreme agitation progressing to delirium and coma) when taken in combination with an MAOI. Some cases presented with features resembling neuroleptic malignant syndrome. Such reactions may occur when these drugs are given concurrently or in close proximity [see CONTRAINDICATIONS].

Effect of CYP2D6 Inhibitors on Atomoxetine

In extensive metabolizers (EMs), inhibitors of CYP2D6 (e.g., paroxetine, fluoxetine, and quinidine) increase atomoxetine steady-state plasma concentrations to exposures similar to those observed in poor metabolizers (PMs). In EM individuals treated with paroxetine or fluoxetine, the AUC of atomoxetine is approximately 6- to 8-fold and Css,max is about 3- to 4-fold greater than atomoxetine alone.

In vitro studies suggest that coadministration of cytochrome P450 inhibitors to PMs will not increase the plasma concentrations of atomoxetine.

Antihypertensive Drugs and Pressor Agents

Because of possible effects on blood pressure, STRATTERA should be used cautiously with antihypertensive drugs and pressor agents (e.g., dopamine, dobutamine) or other drugs that increase blood pressure.

Albuterol

STRATTERA should be administered with caution to patients being treated with systemically-administered (oral or intravenous) albuterol (or other beta2 agonists) because the action of albuterol on the cardiovascular system can be potentiated resulting in increases in heart rate and blood pressure. Albuterol (600 mcg iv over 2 hours) induced increases in heart rate and blood pressure. These effects were potentiated by atomoxetine (60 mg BID for 5 days) and were most marked after the initial coadministration of albuterol and atomoxetine. However, these effects on heart rate and blood pressure were not seen in another study after the coadministration with inhaled dose of albuterol (200-800 mcg) and atomoxetine (80 mg QD for 5 days) in 21 healthy Asian subjects who were excluded for poor metabolizer status.

Effect of Atomoxetine on P450 Enzymes

Atomoxetine did not cause clinically important inhibition or induction of cytochrome P450 enzymes, including CYP1A2, CYP3A, CYP2D6, and CYP2C9.

CYP3A Substrate (e.g., Midazolam)

Coadministration of STRATTERA (60 mg BID for 12 days) with midazolam, a model compound for CYP3A4 metabolized drugs (single dose of 5 mg), resulted in 15% increase in AUC of midazolam. No dose adjustment is recommended for drugs metabolized by CYP3A.

CYP2D6 Substrate (e.g., Desipramine)

Coadministration of STRATTERA (40 or 60 mg BID for 13 days) with desipramine, a model compound for CYP2D6 metabolized drugs (single dose of 50 mg), did not alter the pharmacokinetics of desipramine. No dose adjustment is recommended for drugs metabolized by CYP2D6.

Alcohol

Consumption of ethanol with STRATTERA did not change the intoxicating effects of ethanol.

Methylphenidate

Coadministration of methylphenidate with STRATTERA did not increase cardiovascular effects beyond those seen with methylphenidate alone.

Drugs Highly Bound to Plasma Protein

In vitro drug-displacement studies were conducted with atomoxetine and other highly-bound drugs at therapeutic concentrations. Atomoxetine did not affect the binding of warfarin, acetylsalicylic acid, phenytoin, or diazepam to human albumin. Similarly, these compounds did not affect the binding of atomoxetine to human albumin.

Drugs that Affect Gastric pH

Drugs that elevate gastric pH (magnesium hydroxide/aluminum hydroxide, omeprazole) had no effect on STRATTERA bioavailability.

Drug Abuse And Dependence

Controlled Substance

STRATTERA is not a controlled substance.

Abuse

In a randomized, double-blind, placebo-controlled, abuse-potential study in adults comparing effects of STRATTERA and placebo, STRATTERA was not associated with a pattern of response that suggested stimulant or euphoriant properties.

Dependence

Clinical study data in over 2000 children, adolescents, and adults with ADHD and over 1200 adults with depression showed only isolated incidents of drug diversion or inappropriate self-administration associated with STRATTERA. There was no evidence of symptom rebound or adverse reactions suggesting a drug-discontinuation or withdrawal syndrome.

Animal Experience

Drug discrimination studies in rats and monkeys showed inconsistent stimulus generalization between atomoxetine and cocaine.

Last reviewed on RxList: 6/29/2012
This monograph has been modified to include the generic and brand name in many instances.

WARNINGS

Included as part of the PRECAUTIONS section.

PRECAUTIONS

Suicidal Ideation

STRATTERA increased the risk of suicidal ideation in short-term studies in children and adolescents with AttentionDeficit/Hyperactivity Disorder (ADHD). Pooled analyses of short-term (6 to 18 weeks) placebo-controlled trials of STRATTERA in children and adolescents have revealed a greater risk of suicidal ideation early during treatment in those receiving STRATTERA. There were a total of 12 trials (11 in ADHD and 1 in enuresis) involving over 2200 patients (including 1357 patients receiving STRATTERA and 851 receiving placebo). The average risk of suicidal ideation in patients receiving STRATTERA was 0.4% (5/1357 patients), compared to none in placebo-treated patients. There was 1 suicide attempt among these approximately 2200 patients, occurring in a patient treated with STRATTERA. No suicides occurred in these trials. All reactions occurred in children 12 years of age or younger. All reactions occurred during the first month of treatment. It is unknown whether the risk of suicidal ideation in pediatric patients extends to longer-term use. A similar analysis in adult patients treated with STRATTERA for either ADHD or major depressive disorder (MDD) did not reveal an increased risk of suicidal ideation or behavior in association with the use of STRATTERA.

All pediatric patients being treated with STRATTERA should be monitored appropriately and observed closely for clinical worsening, suicidality, and unusual changes in behavior, especially during the initial few months of a course of drug therapy, or at times of dose changes, either increases or decreases.

The following symptoms have been reported with STRATTERA: anxiety, agitation, panic attacks, insomnia, irritability, hostility, aggressiveness, impulsivity, akathisia (psychomotor restlessness), hypomania and mania. Although a causal link between the emergence of such symptoms and the emergence of suicidal impulses has not been established, there is a concern that such symptoms may represent precursors to emerging suicidality. Thus, patients being treated with STRATTERA should be observed for the emergence of such symptoms.

Consideration should be given to changing the therapeutic regimen, including possibly discontinuing the medication, in patients who are experiencing emergent suicidality or symptoms that might be precursors to emerging suicidality, especially if these symptoms are severe or abrupt in onset, or were not part of the patient's presenting symptoms.

Families and caregivers of pediatric patients being treated with STRATTERA should be alerted about the need to monitor patients for the emergence of agitation, irritability, unusual changes in behavior, and the other symptoms described above, as well as the emergence of suicidality, and to report such symptoms immediately to healthcare providers. Such monitoring should include daily observation by families and caregivers.

Severe Liver Injury

Postmarketing reports indicate that STRATTERA can cause severe liver injury. Although no evidence of liver injury was detected in clinical trials of about 6000 patients, there have been rare cases of clinically significant liver injury that were considered probably or possibly related to STRATTERA use in postmarketing experience. Because of probable underreporting, it is impossible to provide an accurate estimate of the true incidence of these reactions. Reported cases of liver injury occurred within 120 days of initiation of atomoxetine in the majority of cases and some patients presented with markedly elevated liver enzymes [ > 20 X upper limit of normal (ULN)], and jaundice with significantly elevated bilirubin levels ( > 2 X ULN), followed by recovery upon atomoxetine discontinuation. In one patient, liver injury, manifested by elevated hepatic enzymes up to 40 X ULN and jaundice with bilirubin up to 12 X ULN, recurred upon rechallenge, and was followed by recovery upon drug discontinuation, providing evidence that STRATTERA likely caused the liver injury. Such reactions may occur several months after therapy is started, but laboratory abnormalities may continue to worsen for several weeks after drug is stopped. The patient described above recovered from his liver injury, and did not require a liver transplant. However, severe liver injury due to any drug may potentially progress to acute liver failure resulting in death or the need for a liver transplant.

STRATTERA should be discontinued in patients with jaundice or laboratory evidence of liver injury, and should not be restarted. Laboratory testing to determine liver enzyme levels should be done upon the first symptom or sign of liver dysfunction (e.g., pruritus, dark urine, jaundice, right upper quadrant tenderness, or unexplained “flu like” symptoms) [see PATIENT INFORMATION].

Serious Cardiovascular Events

Sudden Death and Pre-existing Structural Cardiac Abnormalities or Other Serious Heart Problems

Children and Adolescents

Sudden death has been reported in association with atomoxetine treatment at usual doses in children and adolescents with structural cardiac abnormalities or other serious heart problems. Although some serious heart problems alone carry an increased risk of sudden death, atomoxetine generally should not be used in children or adolescents with known serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, or other serious cardiac problems that may place them at increased vulnerability to the noradrenergic effects of atomoxetine.

Adults

Sudden deaths, stroke, and myocardial infarction have been reported in adults taking atomoxetine at usual doses for ADHD. Although the role of atomoxetine in these adult cases is also unknown, adults have a greater likelihood than children of having serious structural cardiac abnormalities, cardiomyopathy, serious heart rhythm abnormalities, coronary artery disease, or other serious cardiac problems. Consideration should be given to not treating adults with clinically significant cardiac abnormalities.

Assessing Cardiovascular Status in Patients being Treated with Atomoxetine

Children, adolescents, or adults who are being considered for treatment with atomoxetine should have a careful history (including assessment for a family history of sudden death or ventricular arrhythmia) and physical exam to assess for the presence of cardiac disease, and should receive further cardiac evaluation if findings suggest such disease (e.g., electrocardiogram and echocardiogram). Patients who develop symptoms such as exertional chest pain, unexplained syncope, or other symptoms suggestive of cardiac disease during atomoxetine treatment should undergo a prompt cardiac evaluation.

Effects on Blood Pressure and Heart Rate

STRATTERA should be used with caution in patients whose underlying medical conditions could be worsened by increases in blood pressure or heart rate such as certain patients with hypertension, tachycardia, or cardiovascular or cerebrovascular disease. It should not be used in patients with severe cardiovascular disorders whose condition would be expected to deteriorate if they experienced clinically important increases in blood pressure or heart rate [see CONTRAINDICATIONS]. Pulse and blood pressure should be measured at baseline, following STRATTERA dose increases, and periodically while on therapy to detect possible clinically important increases.

The following table provides short-term, placebo-controlled clinical trial data for the proportions of patients having an increase in: diastolic blood pressure ≥ 15 mm Hg; systolic blood pressure ≥ 20 mm Hg; heart rate greater than or equal to 20 bpm, in both the pediatric and adult populations (see Table 1).

Table 1a

  Pediatric Acute Placebo-Controlled Adult Acute Placebo-Controlled
Maximumb Endpoint Maximumb Endpoint
Atomoxetine Placebo Atomoxetine Placebo Atomoxetine Placebo Atomoxetine Placebo
% % % % % % % %
DBP ( ≥ 15 mm Hg) 21.5 14.1 9.3 4.8 12.6 8.7 4.8 3.5
SBP ( ≥ 20 mm Hg) 12.5 8.7 4.9 3.3 12.4 7.8 4.2 3.2
HR ( ≥ 20 bpm) 23.4 11.5 12.2 3.8 22.4 8.3 10.2 2
aAbbreviations: bpm=beats per minute; DBP=diastolic blood pressure; HR=heart rate; mm Hg=millimeters mercury; SBP=systolic blood pressure.
bProportion of patients meeting threshold at any one time during clinical trial.

In placebo-controlled registration studies involving pediatric patients, tachycardia was identified as an adverse event for 0.3% (5/1597) of these STRATTERA patients compared with 0% (0/934) of placebo patients. The mean heart rate increase in extensive metabolizer (EM) patients was 5.0 beats/minute, and in poor metabolizer (PM) patients 9.4 beats/minute.

In placebo-controlled registration studies involving adult patients, tachycardia was identified as an adverse event for 1.5% (8/540) of STRATTERA patients compared with 0.5% (2/402) of placebo patients.

Orthostatic hypotension and syncope have been reported in patients taking STRATTERA. In child and adolescent registration studies, 0.2% (12/5596) of STRATTERA-treated patients experienced orthostatic hypotension and 0.8% (46/5596) experienced syncope. In short-term child and adolescent registration studies, 1.8% (6/340) of STRATTERA-treated patients experienced orthostatic hypotension compared with 0.5% (1/207) of placebo-treated patients. Syncope was not reported during short-term child and adolescent placebo-controlled ADHD registration studies. STRATTERA should be used with caution in any condition that may predispose patients to hypotension, or conditions associated with abrupt heart rate or blood pressure changes.

Emergence of New Psychotic or Manic Symptoms

Treatment emergent psychotic or manic symptoms, e.g., hallucinations, delusional thinking, or mania in children and adolescents without a prior history of psychotic illness or mania can be caused by atomoxetine at usual doses. If such symptoms occur, consideration should be given to a possible causal role of atomoxetine, and discontinuation of treatment should be considered. In a pooled analysis of multiple short-term, placebo-controlled studies, such symptoms occurred in about 0.2% (4 patients with reactions out of 1939 exposed to atomoxetine for several weeks at usual doses) of atomoxetine-treated patients compared to 0 out of 1056 placebo-treated patients.

Screening Patients for Bipolar Disorder

In general, particular care should be taken in treating ADHD in patients with comorbid bipolar disorder because of concern for possible induction of a mixed/manic episode in patients at risk for bipolar disorder. Whether any of the symptoms described above represent such a conversion is unknown. However, prior to initiating treatment with STRATTERA, patients with comorbid depressive symptoms should be adequately screened to determine if they are at risk for bipolar disorder; such screening should include a detailed psychiatric history, including a family history of suicide, bipolar disorder, and depression.

Aggressive Behavior or Hostility

Patients beginning treatment for ADHD should be monitored for the appearance or worsening of aggressive behavior or hostility. Aggressive behavior or hostility is often observed in children and adolescents with ADHD. In short-term controlled clinical trials, 21/1308 (1.6%) of atomoxetine patients versus 9/806 (1.1%) of placebo-treated patients spontaneously reported treatment emergent hostility-related adverse events. Although this is not conclusive evidence that STRATTERA causes aggressive behavior or hostility, these behaviors were more frequently observed in clinical trials among children and adolescents treated with STRATTERA compared to placebo (overall risk ratio of 1.33 [95% C.I. 0.67-2.64 - not statistically significant]).

Allergic Events

Although uncommon, allergic reactions, including anaphylactic reactions, angioneurotic edema, urticaria, and rash, have been reported in patients taking STRATTERA.

Effects on Urine Outflow from the Bladder

In adult ADHD controlled trials, the rates of urinary retention (1.7%, 9/540) and urinary hesitation (5.6%, 30/540) were increased among atomoxetine subjects compared with placebo subjects (0%, 0/402 ; 0.5%, 2/402, respectively). Two adult atomoxetine subjects and no placebo subjects discontinued from controlled clinical trials because of urinary retention. A complaint of urinary retention or urinary hesitancy should be considered potentially related to atomoxetine.

Priapism

Rare postmarketing cases of priapism, defined as painful and nonpainful penile erection lasting more than 4 hours, have been reported for pediatric and adult patients treated with STRATTERA. The erections resolved in cases in which follow-up information was available, some following discontinuation of STRATTERA. Prompt medical attention is required in the event of suspected priapism.

Effects on Growth

Data on the long-term effects of STRATTERA on growth come from open-label studies, and weight and height changes are compared to normative population data. In general, the weight and height gain of pediatric patients treated with STRATTERA lags behind that predicted by normative population data for about the first 9-12 months of treatment. Subsequently, weight gain rebounds and at about 3 years of treatment, patients treated with STRATTERA have gained 17.9 kg on average, 0.5 kg more than predicted by their baseline data. After about 12 months, gain in height stabilizes, and at 3 years, patients treated with STRATTERA have gained 19.4 cm on average, 0.4 cm less than predicted by their baseline data (see Figure 1 below).

Figure 1: Mean Weight and Height Percentiles Over Time for Patients With Three Years of STRATTERA Treatment

Mean Weight and Height Percentiles - Illustration

This growth pattern was generally similar regardless of pubertal status at the time of treatment initiation. Patients who were pre-pubertal at the start of treatment (girls ≤ 8 years old, boys ≤ 9 years old) gained an average of 2.1 kg and 1.2 cm less than predicted after three years. Patients who were pubertal (girls > 8 to ≤ 13 years old, boys > 9 to ≤ 14 years old) or late pubertal (girls > 13 years old, boys > 14 years old) had average weight and height gains that were close to or exceeded those predicted after three years of treatment.

Growth followed a similar pattern in both extensive and poor metabolizers (EMs, PMs). PMs treated for at least two years gained an average of 2.4 kg and 1.1 cm less than predicted, while EMs gained an average of 0.2 kg and 0.4 cm less than predicted.

In short-term controlled studies (up to 9 weeks), STRATTERA-treated patients lost an average of 0.4 kg and gained an average of 0.9 cm, compared to a gain of 1.5 kg and 1.1 cm in the placebo-treated patients. In a fixed-dose controlled trial, 1.3%, 7.1%, 19.3%, and 29.1% of patients lost at least 3.5% of their body weight in the placebo, 0.5, 1.2, and 1.8 mg/kg/day dose groups.

Growth should be monitored during treatment with STRATTERA.

Laboratory Tests

Routine laboratory tests are not required.

CYP2D6 metabolism

Poor metabolizers (PMs) of CYP2D6 have a 10-fold higher AUC and a 5-fold higher peak concentration to a given dose of STRATTERA compared with extensive metabolizers (EMs). Approximately 7% of a Caucasian population are PMs. Laboratory tests are available to identify CYP2D6 PMs. The blood levels in PMs are similar to those attained by taking strong inhibitors of CYP2D6. The higher blood levels in PMs lead to a higher rate of some adverse effects of STRATTERA [see ADVERSE REACTIONS].

Concomitant Use of Potent CYP2D6 Inhibitors or Use in patients who are known to be CYP2D6 PMs

Atomoxetine is primarily metabolized by the CYP2D6 pathway to 4-hydroxyatomoxetine. Dosage adjustment of STRATTERA may be necessary when coadministered with potent CYP2D6 inhibitors (e.g., paroxetine, fluoxetine, and quinidine) or when administered to CYP2D6 PMs. [See DOSAGE AND ADMINISTRATION and DRUG INTERACTIONS].

Patient Counseling Information

See FDA-approved Medication Guide.

General Information

Physicians should instruct their patients to read the Medication Guide before starting therapy with STRATTERA and to reread it each time the prescription is renewed.

Prescribers or other health professionals should inform patients, their families, and their caregivers about the benefits and risks associated with treatment with STRATTERA and should counsel them in its appropriate use. The prescriber or health professional should instruct patients, their families, and their caregivers to read the Medication Guide and should assist them in understanding its contents. Patients should be given the opportunity to discuss the contents of the Medication Guide and to obtain answers to any questions they may have.

Patients should be advised of the following issues and asked to alert their prescriber if these occur while taking STRATTERA.

Suicide Risk

Patients, their families, and their caregivers should be encouraged to be alert to the emergence of anxiety, agitation, panic attacks, insomnia, irritability, hostility, aggressiveness, impulsivity, akathisia (psychomotor restlessness), hypomania, mania, other unusual changes in behavior, depression, and suicidal ideation, especially early during STRATTERA treatment and when the dose is adjusted. Families and caregivers of patients should be advised to observe for the emergence of such symptoms on a day-to-day basis, since changes may be abrupt. Such symptoms should be reported to the patient's prescriber or health professional, especially if they are severe, abrupt in onset, or were not part of the patient's presenting symptoms. Symptoms such as these may be associated with an increased risk for suicidal thinking and behavior and indicate a need for very close monitoring and possibly changes in the medication.

Severe Liver Injury

Patients initiating STRATTERA should be cautioned that severe liver injury may develop. Patients should be instructed to contact their physician immediately should they develop pruritus, dark urine, jaundice, right upper quadrant tenderness, or unexplained “flu-like” symptoms [see WARNINGS AND PRECAUTIONS].

Aggression or Hostility

Patients should be instructed to call their doctor as soon as possible should they notice an increase in aggression or hostility.

Priapism

Rare postmarketing cases of priapism, defined as painful and nonpainful penile erection lasting more than 4 hours, have been reported for pediatric and adult patients treated with STRATTERA. The parents or guardians of pediatric patients taking STRATTERA and adult patients taking STRATTERA should be instructed that priapism requires prompt medical attention.

Ocular Irritant

STRATTERA is an ocular irritant. STRATTERA capsules are not intended to be opened. In the event of capsule content coming in contact with the eye, the affected eye should be flushed immediately with water, and medical advice obtained. Hands and any potentially contaminated surfaces should be washed as soon as possible.

Drug-Drug Interaction

Patients should be instructed to consult a physician if they are taking or plan to take any prescription or over-the-counter medicines, dietary supplements, or herbal remedies.

Pregnancy

Patients should be instructed to consult a physician if they are nursing, pregnant, or thinking of becoming pregnant while taking STRATTERA.

Food

Patients may take STRATTERA with or without food.

Missed Dose

If patients miss a dose, they should be instructed to take it as soon as possible, but should not take more than the prescribed total daily amount of STRATTERA in any 24-hour period.

Interference with Psychomotor Performance

Patients should be instructed to use caution when driving a car or operating hazardous machinery until they are reasonably certain that their performance is not affected by atomoxetine.

Nonclinical Toxicology

Carcinogenesis, Mutagenesis, Impairment of Fertility

Carcinogenesis

Atomoxetine HCl was not carcinogenic in rats and mice when given in the diet for 2 years at time-weighted average doses up to 47 and 458 mg/kg/day, respectively. The highest dose used in rats is approximately 8 and 5 times the maximum human dose in children and adults, respectively, on a mg/m² basis. Plasma levels (AUC) of atomoxetine at this dose in rats are estimated to be 1.8 times (extensive metabolizers) or 0.2 times (poor metabolizers) those in humans receiving the maximum human dose. The highest dose used in mice is approximately 39 and 26 times the maximum human dose in children and adults, respectively, on a mg/m² basis.

Mutagenesis

Atomoxetine HCl was negative in a battery of genotoxicity studies that included a reverse point mutation assay (Ames Test), an in vitro mouse lymphoma assay, a chromosomal aberration test in Chinese hamster ovary cells, an unscheduled DNA synthesis test in rat hepatocytes, and an in vivo micronucleus test in mice. However, there was a slight increase in the percentage of Chinese hamster ovary cells with diplochromosomes, suggesting endoreduplication (numerical aberration).

The metabolite N-desmethylatomoxetine HCl was negative in the Ames Test, mouse lymphoma assay, and unscheduled DNA synthesis test.

Impairment of fertility

Atomoxetine HCl did not impair fertility in rats when given in the diet at doses of up to 57 mg/kg/day, which is approximately 6 times the maximum human dose on a mg/m² basis.

Use In Specific Populations

Pregnancy

Pregnancy Category C

Pregnant rabbits were treated with up to 100 mg/kg/day of atomoxetine by gavage throughout the period of organogenesis. At this dose, in 1 of 3 studies, a decrease in live fetuses and an increase in early resorptions was observed. Slight increases in the incidences of atypical origin of carotid artery and absent subclavian artery were observed. These findings were observed at doses that caused slight maternal toxicity. The no-effect dose for these findings was 30 mg/kg/day. The 100 mg/kg dose is approximately 23 times the maximum human dose on a mg/m² basis; plasma levels (AUC) of atomoxetine at this dose in rabbits are estimated to be 3.3 times (extensive metabolizers) or 0.4 times (poor metabolizers) those in humans receiving the maximum human dose.

Rats were treated with up to approximately 50 mg/kg/day of atomoxetine (approximately 6 times the maximum human dose on a mg/m² basis) in the diet from 2 weeks (females) or 10 weeks (males) prior to mating through the periods of organogenesis and lactation. In 1 of 2 studies, decreases in pup weight and pup survival were observed. The decreased pup survival was also seen at 25 mg/kg (but not at 13 mg/kg). In a study in which rats were treated with atomoxetine in the diet from 2 weeks (females) or 10 weeks (males) prior to mating throughout the period of organogenesis, a decrease in fetal weight (female only) and an increase in the incidence of incomplete ossification of the vertebral arch in fetuses were observed at 40 mg/kg/day (approximately 5 times the maximum human dose on a mg/m² basis) but not at 20 mg/kg/day.

No adverse fetal effects were seen when pregnant rats were treated with up to 150 mg/kg/day (approximately 17 times the maximum human dose on a mg/m² basis) by gavage throughout the period of organogenesis.

No adequate and well-controlled studies have been conducted in pregnant women. STRATTERA should not be used during pregnancy unless the potential benefit justifies the potential risk to the fetus.

Labor and Delivery

Parturition in rats was not affected by atomoxetine. The effect of STRATTERA on labor and delivery in humans is unknown.

Nursing Mothers

Atomoxetine and/or its metabolites were excreted in the milk of rats. It is not known if atomoxetine is excreted in human milk. Caution should be exercised if STRATTERA is administered to a nursing woman.

Pediatric Use

Anyone considering the use of STRATTERA in a child or adolescent must balance the potential risks with the clinical need [see BOXED WARNING and WARNINGS AND PRECAUTIONS].

The pharmacokinetics of atomoxetine in children and adolescents are similar to those in adults. The safety, efficacy, and pharmacokinetics of STRATTERA in pediatric patients less than 6 years of age have not been evaluated.

A study was conducted in young rats to evaluate the effects of atomoxetine on growth and neurobehavioral and sexual development. Rats were treated with 1, 10, or 50 mg/kg/day (approximately 0.2, 2, and 8 times, respectively, the maximum human dose on a mg/m² basis) of atomoxetine given by gavage from the early postnatal period (Day 10 of age) through adulthood. Slight delays in onset of vaginal patency (all doses) and preputial separation (10 and 50 mg/kg), slight decreases in epididymal weight and sperm number (10 and 50 mg/kg), and a slight decrease in corpora lutea (50 mg/kg) were seen, but there were no effects on fertility or reproductive performance. A slight delay in onset of incisor eruption was seen at 50 mg/kg. A slight increase in motor activity was seen on Day 15 (males at 10 and 50 mg/kg and females at 50 mg/kg) and on Day 30 (females at 50 mg/kg) but not on Day 60 of age. There were no effects on learning and memory tests. The significance of these findings to humans is unknown.

Geriatric Use

The safety, efficacy and pharmacokinetics of STRATTERA in geriatric patients have not been evaluated.

Hepatic Insufficiency

Atomoxetine exposure (AUC) is increased, compared with normal subjects, in EM subjects with moderate (Child-Pugh Class B) (2-fold increase) and severe (Child-Pugh Class C) (4-fold increase) hepatic insufficiency. Dosage adjustment is recommended for patients with moderate or severe hepatic insufficiency [see DOSAGE AND ADMINISTRATION].

Renal Insufficiency

EM subjects with end stage renal disease had higher systemic exposure to atomoxetine than healthy subjects (about a 65% increase), but there was no difference when exposure was corrected for mg/kg dose. STRATTERA can therefore be administered to ADHD patients with end stage renal disease or lesser degrees of renal insufficiency using the normal dosing regimen.

Gender

Gender did not influence atomoxetine disposition.

Ethnic Origin

Ethnic origin did not influence atomoxetine disposition (except that PMs are more common in Caucasians).

Patients with Concomitant Illness

Tics in patients with ADHD and comorbid Tourette's Disorder

Atomoxetine administered in a flexible dose range of 0.5 to 1.5 mg/kg/day (mean dose of 1.3 mg/kg/day) and placebo were compared in 148 randomized pediatric (age 7-17 years) subjects with a DSM-IV diagnosis of ADHD and comorbid tic disorder in an 18 week, double-blind, placebo-controlled study in which the majority (80%) enrolled in this trial with Tourette's Disorder (Tourette's Disorder: 116 subjects; chronic motor tic disorder: 29 subjects). A non-inferiority analysis revealed that STRATTERA did not worsen tics in these patients as determined by the Yale Global Tic Severity Scale Total Score (YGTSS). Out of 148 patients who entered the acute treatment phase, 103 (69.6%) patients discontinued the study. The primary reason for discontinuation in both the atomoxetine (38 of 76 patients, 50.0%) and placebo (45 of 72 patients, 62.5%) treatment groups was identified as lack of efficacy with most of the patients discontinuing at Week 12. This was the first visit where patients with a CGI-S ≥ 4 could also meet the criteria for “clinical non-responder” (CGI-S remained the same or increased from study baseline) and be eligible to enter an open-label extension study with atomoxetine. There have been postmarketing reports of tics [see ADVERSE REACTIONS].

Anxiety in patients with ADHD and comorbid Anxiety Disorders

In two post-marketing, double-blind, placebo-controlled trials, it has been demonstrated that treating patients with ADHD and comorbid anxiety disorders with STRATTERA does not worsen their anxiety.

In a 12-week double-blind, placebo-controlled trial, 176 patients, aged 8-17, who met DSM-IV criteria for ADHD and at least one of the anxiety disorders of separation anxiety disorder, generalized anxiety disorder or social phobia were randomized. Following a 2-week double-blind placebo lead-in, STRATTERA was initiated at 0.8 mg/kg/day with increase to a target dose of 1.2 mg/kg/day (median dose 1.30 mg/kg/day +/- 0.29 mg/kg/day). STRATTERA did not worsen anxiety in these patients as determined by the Pediatric Anxiety Rating Scale (PARS). Of the 158 patients who completed the double-blind placebo lead-in, 26 (16%) patients discontinued the study.

In a separate 16-week, double-blind, placebo-controlled trial, 442 patients aged 18-65, who met DSM-IV criteria for adult ADHD and social anxiety disorder (23% of whom also had Generalized Anxiety Disorder) were randomized. Following a 2-week double-blind placebo lead-in, STRATTERA was initiated at 40 mg/day to a maximum dose of 100 mg/day (mean daily dose 83 mg/day +/- 19.5 mg/day). STRATTERA did not worsen anxiety in these patients as determined by the Liebowitz Social Anxiety Scale (LSAS). Of the 436 patients who completed the double-blind placebo lead-in, 172 (39.4%) patients discontinued the study. There have been postmarketing reports of anxiety [see ADVERSE REACTIONS].

Last reviewed on RxList: 4/29/2011
This monograph has been modified to include the generic and brand name in many instances.

OVERDOSE

Human Experience

No fatal overdoses occurred in clinical trials. There is limited clinical trial experience with STRATTERA overdose. During postmarketing, there have been fatalities reported involving a mixed ingestion overdose of STRATTERA and at least one other drug. There have been no reports of death involving overdose of STRATTERA alone, including intentional overdoses at amounts up to 1400 mg. In some cases of overdose involving STRATTERA, seizures have been reported. The most commonly reported symptoms accompanying acute and chronic overdoses of STRATTERA were gastrointestinal symptoms, somnolence, dizziness, tremor, and abnormal behavior. Hyperactivity and agitation have also been reported. Signs and symptoms consistent with mild to moderate sympathetic nervous system activation (e.g., tachycardia, blood pressure increased, mydriasis, dry mouth) have also been observed. Most events were mild to moderate. Less commonly, there have been reports of QT prolongation and mental changes, including disorientation and hallucinations.

Management of Overdose

Consult with a Certified Poison Control Center for up to date guidance and advice. Because atomoxetine is highly protein-bound, dialysis is not likely to be useful in the treatment of overdose.

CONTRAINDICATIONS

Hypersensitivity

STRATTERA is contraindicated in patients known to be hypersensitive to atomoxetine or other constituents of the product [see WARNINGS AND PRECAUTIONS].

Monoamine Oxidase Inhibitors (MAOI)

STRATTERA should not be taken with an MAOI, or within 2 weeks after discontinuing an MAOI. Treatment with an MAOI should not be initiated within 2 weeks after discontinuing STRATTERA. With other drugs that affect brain monoamine concentrations, there have been reports of serious, sometimes fatal reactions (including hyperthermia, rigidity, myoclonus, autonomic instability with possible rapid fluctuations of vital signs, and mental status changes that include extreme agitation progressing to delirium and coma) when taken in combination with an MAOI. Some cases presented with features resembling neuroleptic malignant syndrome. Such reactions may occur when these drugs are given concurrently or in close proximity [see DRUG INTERACTIONS].

Narrow Angle Glaucoma

In clinical trials, STRATTERA use was associated with an increased risk of mydriasis and therefore its use is not recommended in patients with narrow angle glaucoma.

Pheochromocytoma

Serious reactions, including elevated blood pressure and tachyarrhythmia, have been reported in patients with pheochromocytoma or a history of pheochromocytoma who received STRATTERA. Therefore, STRATTERA should not be taken by patients with pheochromocytoma or a history of pheochromocytoma.

Severe Cardiovascular Disorders

STRATTERA should not be used in patients with severe cardiovascular disorders whose condition would be expected to deteriorate if they experience increases in blood pressure or heart rate that could be clinically important (for example, 15 to 20 mm Hg in blood pressure or 20 beats per minute in heart rate). [See WARNINGS AND PRECAUTIONS].

Last reviewed on RxList: 6/29/2012
This monograph has been modified to include the generic and brand name in many instances.

CLINICAL PHARMACOLOGY

Mechanism of Action

The precise mechanism by which atomoxetine produces its therapeutic effects in Attention-Deficit/Hyperactivity Disorder (ADHD) is unknown, but is thought to be related to selective inhibition of the pre-synaptic norepinephrine transporter, as determined in ex vivo uptake and neurotransmitter depletion studies.

Pharmacodynamics

An exposure-response analysis encompassing doses of atomoxetine (0.5, 1.2 or 1.8 mg/kg/day) or placebo demonstrated atomoxetine exposure correlates with efficacy as measured by the Attention-Deficit/Hyperactivity Disorder Rating Scale-IV-Parent Version: Investigator administered and scored. The exposure-efficacy relationship was similar to that observed between dose and efficacy with median exposures at the two highest doses resulting in near maximal changes from baseline [see Clinical Studies].

Pharmacokinetics

Atomoxetine is well-absorbed after oral administration and is minimally affected by food. It is eliminated primarily by oxidative metabolism through the cytochrome P450 2D6 (CYP2D6) enzymatic pathway and subsequent glucuronidation. Atomoxetine has a half-life of about 5 hours. A fraction of the population (about 7% of Caucasians and 2% of African Americans) are poor metabolizers (PMs) of CYP2D6 metabolized drugs. These individuals have reduced activity in this pathway resulting in 10-fold higher AUCs, 5-fold higher peak plasma concentrations, and slower elimination (plasma half-life of about 24 hours) of atomoxetine compared with people with normal activity [extensive metabolizers (EMs)]. Drugs that inhibit CYP2D6, such as fluoxetine, paroxetine, and quinidine, cause similar increases in exposure.

The pharmacokinetics of atomoxetine have been evaluated in more than 400 children and adolescents in selected clinical trials, primarily using population pharmacokinetic studies. Single-dose and steady-state individual pharmacokinetic data were also obtained in children, adolescents, and adults. When doses were normalized to a mg/kg basis, similar half-life, Cmax, and AUC values were observed in children, adolescents, and adults. Clearance and volume of distribution after adjustment for body weight were also similar.

Absorption and distribution

Atomoxetine is rapidly absorbed after oral administration, with absolute bioavailability of about 63% in EMs and 94% in PMs. Maximal plasma concentrations (Cmax) are reached approximately 1 to 2 hours after dosing.

STRATTERA can be administered with or without food. Administration of STRATTERA with a standard high-fat meal in adults did not affect the extent of oral absorption of atomoxetine (AUC), but did decrease the rate of absorption, resulting in a 37% lower Cmax, and delayed Tmax by 3 hours. In clinical trials with children and adolescents, administration of STRATTERA with food resulted in a 9% lower Cmax.

The steady-state volume of distribution after intravenous administration is 0.85 L/kg indicating that atomoxetine distributes primarily into total body water. Volume of distribution is similar across the patient weight range after normalizing for body weight.

At therapeutic concentrations, 98% of atomoxetine in plasma is bound to protein, primarily albumin.

Metabolism and elimination

Atomoxetine is metabolized primarily through the CYP2D6 enzymatic pathway. People with reduced activity in this pathway (PMs) have higher plasma concentrations of atomoxetine compared with people with normal activity (EMs). For PMs, AUC of atomoxetine is approximately 10-fold and Css,max is about 5-fold greater than EMs. Laboratory tests are available to identify CYP2D6 PMs. Coadministration of STRATTERA with potent inhibitors of CYP2D6, such as fluoxetine, paroxetine, or quinidine, results in a substantial increase in atomoxetine plasma exposure, and dosing adjustment may be necessary [see WARNINGS AND PRECAUTIONS]. Atomoxetine did not inhibit or induce the CYP2D6 pathway.

The major oxidative metabolite formed, regardless of CYP2D6 status, is 4-hydroxyatomoxetine, which is glucuronidated. 4-Hydroxyatomoxetine is equipotent to atomoxetine as an inhibitor of the norepinephrine transporter but circulates in plasma at much lower concentrations (1% of atomoxetine concentration in EMs and 0.1% of atomoxetine concentration in PMs). 4-Hydroxyatomoxetine is primarily formed by CYP2D6, but in PMs, 4-hydroxyatomoxetine is formed at a slower rate by several other cytochrome P450 enzymes. N-Desmethylatomoxetine is formed by CYP2C19 and other cytochrome P450 enzymes, but has substantially less pharmacological activity compared with atomoxetine and circulates in plasma at lower concentrations (5% of atomoxetine concentration in EMs and 45% of atomoxetine concentration in PMs).

Mean apparent plasma clearance of atomoxetine after oral administration in adult EMs is 0.35 L/hr/kg and the mean half-life is 5.2 hours. Following oral administration of atomoxetine to PMs, mean apparent plasma clearance is 0.03 L/hr/kg and mean half-life is 21.6 hours. For PMs, AUC of atomoxetine is approximately 10-fold and Css,max is about 5-fold greater than EMs. The elimination half-life of 4-hydroxyatomoxetine is similar to that of N-desmethylatomoxetine (6 to 8 hours) in EM subjects, while the half-life of Ndesmethylatomoxetine is much longer in PM subjects (34 to 40 hours).

Atomoxetine is excreted primarily as 4-hydroxyatomoxetine-O-glucuronide, mainly in the urine (greater than 80% of the dose) and to a lesser extent in the feces (less than 17% of the dose). Only a small fraction of the STRATTERA dose is excreted as unchanged atomoxetine (less than 3% of the dose), indicating extensive biotransformation. [See Use In Specific Populations].

Clinical Studies

ADHD studies in Children and Adolescents

Acute Studies

The effectiveness of STRATTERA in the treatment of ADHD was established in 4 randomized, double-blind, placebo-controlled studies of pediatric patients (ages 6 to 18). Approximately one-third of the patients met DSM-IV criteria for inattentive subtype and two-thirds met criteria for both inattentive and hyperactive/impulsive subtypes.

Signs and symptoms of ADHD were evaluated by a comparison of mean change from baseline to endpoint for STRATTERA-and placebo-treated patients using an intent-to-treat analysis of the primary outcome measure, the investigator administered and scored ADHD Rating Scale-IV-Parent Version (ADHDRS) total score including hyperactive/impulsive and inattentive subscales. Each item on the ADHDRS maps directly to one symptom criterion for ADHD in the DSM-IV.

In Study 1, an 8-week randomized, double-blind, placebo-controlled, dose-response, acute treatment study of children and adolescents aged 8 to 18 (N=297), patients received either a fixed dose of STRATTERA (0.5, 1.2, or 1.8 mg/kg/day) or placebo. STRATTERA was administered as a divided dose in the early morning and late afternoon/early evening. At the 2 higher doses, improvements in ADHD symptoms were statistically significantly superior in STRATTERA-treated patients compared with placebo-treated patients as measured on the ADHDRS scale. The 1.8 mg/kg/day STRATTERA dose did not provide any additional benefit over that observed with the 1.2 mg/kg/day dose. The 0.5 mg/kg/day STRATTERA dose was not superior to placebo.

In Study 2, a 6-week randomized, double-blind, placebo-controlled, acute treatment study of children and adolescents aged 6 to 16 (N=171), patients received either STRATTERA or placebo. STRATTERA was administered as a single dose in the early morning and titrated on a weight-adjusted basis according to clinical response, up to a maximum dose of 1.5 mg/kg/day. The mean final dose of STRATTERA was approximately 1.3 mg/kg/day. ADHD symptoms were statistically significantly improved on STRATTERA compared with placebo, as measured on the ADHDRS scale. This study shows that STRATTERA is effective when administered once daily in the morning.

In 2 identical, 9-week, acute, randomized, double-blind, placebo-controlled studies of children aged 7 to 13 (Study 3, N=147; Study 4, N=144), STRATTERA and methylphenidate were compared with placebo. STRATTERA was administered as a divided dose in the early morning and late afternoon (after school) and titrated on a weight-adjusted basis according to clinical response. The maximum recommended STRATTERA dose was 2.0 mg/kg/day. The mean final dose of STRATTERA for both studies was approximately 1.6 mg/kg/day. In both studies, ADHD symptoms statistically significantly improved more on STRATTERA than on placebo, as measured on the ADHDRS scale.

Examination of population subsets based on gender and age ( < 12 and 12 to 17) did not reveal any differential responsiveness on the basis of these subgroupings. There was not sufficient exposure of ethnic groups other than Caucasian to allow exploration of differences in these subgroups.

Maintenance Study

The effectiveness of STRATTERA in the maintenance treatment of ADHD was established in an outpatient study of children and adolescents (ages 6-15 years). Patients meeting DSM-IV criteria for ADHD who showed continuous response for about 4 weeks during an initial 10 week open-label treatment phase with STRATTERA (1.2 to 1.8 mg/kg/day) were randomized to continuation of their current dose of STRATTERA (N=292) or to placebo (N=124) under double-blind treatment for observation of relapse. Response during the open-label phase was defined as CGI-ADHD-S score ≤ 2 and a reduction of at least 25% from baseline in ADHDRS-IV-Parent:Inv total score. Patients who were assigned to STRATTERA and showed continuous response for approximately 8 months during the first double-blind treatment phase were again randomized to continuation of their current dose of STRATTERA (N=81) or to placebo (N=82) under double-blind treatment for observation of relapse. Relapse during the double-blind phase was defined as CGI-ADHD-S score increases of at least 2 from the end of open-label phase and ADHDRS-IV-Parent:Inv total score returns to ≥ 90% of study entry score for 2 consecutive visits. In both double-blind phases, patients receiving continued STRATTERA treatment experienced significantly longer times to relapse than those receiving placebo.

ADHD studies in Adults

The effectiveness of STRATTERA in the treatment of ADHD was established in 2 randomized, double-blind, placebo-controlled clinical studies of adult patients, age 18 and older, who met DSM-IV criteria for ADHD.

Signs and symptoms of ADHD were evaluated using the investigator-administered Conners Adult ADHD Rating Scale Screening Version (CAARS), a 30-item scale. The primary effectiveness measure was the 18-item Total ADHD Symptom score (the sum of the inattentive and hyperactivity/impulsivity subscales from the CAARS) evaluated by a comparison of mean change from baseline to endpoint using an intent-to-treat analysis.

In 2 identical, 10-week, randomized, double-blind, placebo-controlled acute treatment studies (Study 5, N=280; Study 6, N=256), patients received either STRATTERA or placebo. STRATTERA was administered as a divided dose in the early morning and late afternoon/early evening and titrated according to clinical response in a range of 60 to 120 mg/day. The mean final dose of STRATTERA for both studies was approximately 95 mg/day. In both studies, ADHD symptoms were statistically significantly improved on STRATTERA, as measured on the ADHD Symptom score from the CAARS scale.

Examination of population subsets based on gender and age ( < 42 and ≥ 42) did not reveal any differential responsiveness on the basis of these subgroupings. There was not sufficient exposure of ethnic groups other than Caucasian to allow exploration of differences in these subgroups.

Last reviewed on RxList: 6/29/2012
This monograph has been modified to include the generic and brand name in many instances.

PATIENT INFORMATION

MEDICATION GUIDE

STRATTERA®
(Stra-TAIR-a)
(atomoxetine hydrochloride)

Read the Medication Guide that comes with STRATTERA® before you or your child starts taking it and each time you get a refill. There may be new information. This Medication Guide does not take the place of talking to your doctor about your treatment or your child's treatment with STRATTERA.

What is the most important information I should know about STRATTERA?

The following have been reported with use of STRATTERA:

1. Suicidal thoughts and actions in children and teenagers:

Children and teenagers sometimes think about suicide, and many report trying to kill themselves. Results from STRATTERA clinical studies with over 2200 child or teenage ADHD patients suggest that some children and teenagers may have a higher chance of having suicidal thoughts or actions. Although no suicides occurred in these studies, 4 out of every 1000 patients developed suicidal thoughts. Tell your child or teenager's doctor if your child or teenager (or there is a family history of):

  • has bipolar illness (manic-depressive illness)
  • had suicide thoughts or actions before starting STRATTERA

The chance for suicidal thoughts and actions may be higher:

  • early during STRATTERA treatment
  • during dose adjustments

Prevent suicidal thoughts and action in your child or teenager by:

  • paying close attention to your child or teenager's moods, behaviors, thoughts, and feelings during STRATTERA treatment
  • keeping all follow-up visits with your child or teenager's doctor as scheduled

Watch for the following signs in your child or teenager during STRATTERA treatment:

  • anxiety
  • agitation
  • panic attacks
  • trouble sleeping
  • irritability
  • hostility
  • aggressiveness
  • impulsivity
  • restlessness
  • mania
  • depression
  • suicide thoughts

Call your child or teenager's doctor right away if they have any of the above signs, especially if they are new, sudden, or severe. Your child or teenager may need to be closely watched for suicidal thoughts and actions or need a change in medicine.

2. Severe liver damage:

STRATTERA can cause liver injury in some patients. Call your doctor right away if you or your child has the following signs of liver problems:

  • itching
  • right upper belly pain
  • dark urine
  • yellow skin or eyes
  • unexplained flu-like symptoms

3. Heart-related problems:

  • sudden death in patients who have heart problems or heart defects
  • stroke and heart attack in adults
  • increased blood pressure and heart rate

Tell your doctor if you or your child has any heart problems, heart defects, high blood pressure, or a family history of these problems.

Your doctor should check you or your child carefully for heart problems before starting STRATTERA. Your doctor should check your blood pressure or your child's blood pressure and heart rate regularly during treatment with STRATTERA.

Call your doctor right away if you or your child has any signs of heart problems such as chest pain, shortness of breath, or fainting while taking STRATTERA.

4. New mental (psychiatric) problems in children and teenagers:

  • new psychotic symptoms (such as hearing voices, believing things that are not true, being suspicious) or new manic symptoms

Call your child or teenager's doctor right away about any new mental symptoms because adjusting or stopping STRATTERA treatment may need to be considered.

What Is STRATTERA?

STRATTERA is a selective norepinephrine reuptake inhibitor medicine. It is used for the treatment of attention deficit and hyperactivity disorder (ADHD). STRATTERA may help increase attention and decrease impulsiveness and hyperactivity in patients with ADHD.

STRATTERA should be used as a part of a total treatment program for ADHD that may include counseling or other therapies.

STRATTERA has not been studied in children less than 6 years old.

Who should not take STRATTERA?

STRATTERA should not be taken if you or your child:

  • are taking or have taken within the past 14 days an anti-depression medicine called a monoamine oxidase inhibitor or MAOI. Some names of MAOI medicines are Nardil® (phenelzine sulfate), Parnate® (tranylcypromine sulfate) and Emsam® (selegiline transdermal system).
  • have an eye problem called narrow angle glaucoma
  • are allergic to anything in STRATTERA. See the end of this Medication Guide for a complete list of ingredients.
  • have or have had a rare tumor called pheochromocytoma.

STRATTERA may not be right for you or your child. Before starting STRATTERA tell your doctor or your child's doctor about all health conditions (or a family history of) including:

  • have or had suicide thoughts or actions
  • heart problems, heart defects, irregular heart beat, high blood pressure, or low blood pressure
  • mental problems, psychosis, mania, bipolar illness, or depression
  • liver problems

Tell your doctor if you or your child is pregnant, planning to become pregnant, or breastfeeding.

Can STRATTERA be taken with other medicines?

Tell your doctor about all the medicines that you or your child takes including prescription and nonprescription medicines, vitamins, and herbal supplements. STRATTERA and some medicines may interact with each other and cause serious side effects. Your doctor will decide whether STRATTERA can be taken with other medicines.

Especially tell your doctor if you or your child takes:

  • asthma medicines
  • anti-depression medicines including MAOIs
  • blood pressure medicines
  • cold or allergy medicines that contain decongestants

Know the medicines that you or your child takes. Keep a list of your medicines with you to show your doctor and pharmacist.

Do not start any new medicine while taking STRATTERA without talking to your doctor first.

How should STRATTERA be taken?

  • Take STRATTERA exactly as prescribed. STRATTERA comes in different dose strength capsules. Your doctor may adjust the dose until it is right for you or your child.
  • Do not chew, crush, or open the capsules. Swallow STRATTERA capsules whole with water or other liquids. Tell your doctor if you or your child cannot swallow STRATTERA whole. A different medicine may need to be prescribed.
  • Avoid touching a broken STRATTERA capsule. Wash hands and surfaces that touched an open STRATTERA capsule. If any of the powder gets in your eyes or your child's eyes, rinse them with water right away and call your doctor.
  • STRATTERA can be taken with or without food.
  • STRATTERA is usually taken once or twice a day. Take STRATTERA at the same time each day to help you remember. If you miss a dose of STRATTERA, take it as soon as you remember that day. If you miss a day of STRATTERA, do not double your dose the next day. Just skip the day you missed.
  • From time to time, your doctor may stop STRATTERA treatment for a while to check ADHD symptoms.
  • Your doctor may do regular checks of the blood, heart, and blood pressure while taking STRATTERA. Children should have their height and weight checked often while taking STRATTERA. STRATTERA treatment may be stopped if a problem is found during these check-ups.
  • If you or your child takes too much STRATTERA or overdoses, call your doctor or poison control center right away, or get emergency treatment.

What are possible side effects of STRATTERA?

See “What is the most important information I should know about STRATTERA?” for information on reported suicidal thoughts and actions, other mental problems, severe liver damage, and heart problems.

Other serious side effects include:

  • serious allergic reactions (call your doctor if you have trouble breathing, see swelling or hives, or experience other allergic reactions)
  • slowing of growth (height and weight) in children
  • problems passing urine including
    • trouble starting or keeping a urine stream
    • cannot fully empty the bladder

Common side effects in children and teenagers include:

  • upset stomach
  • decreased appetite
  • nausea or vomiting
  • dizziness
  • tiredness
  • mood swings

Common side effects in adults include:

  • constipation
  • dry mouth
  • nausea
  • decreased appetite
  • dizziness
  • trouble sleeping
  • sexual side effects
  • menstrual cramps
  • problems passing urine

Other information for children, teenagers, and adults:

  • Erections that won't go away (priapism) have occurred rarely during treatment with STRATTERA. If you have an erection that lasts more than 4 hours, seek medical help right away. Because of the potential 5 for lasting damage, including the potential inability to have erections, priapism should be evaluated by a doctor immediately.
  • STRATTERA may affect your ability or your child's ability to drive or operate heavy machinery. Be careful until you know how STRATTERA affects you or your child.
  • Talk to your doctor if you or your child has side effects that are bothersome or do not go away.

This is not a complete list of possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

How should I store STRATTERA?

  • Store STRATTERA in a safe place at room temperature, 59 to 86°F (15 to 30°C).
  • Keep STRATTERA and all medicines out of the reach of children.

General information about STRATTERA

Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use STRATTERA for a condition for which it was not prescribed. Do not give STRATTERA to other people, even if they have the same condition. It may harm them.

This Medication Guide summarizes the most important information about STRATTERA. If you would like more information, talk with your doctor. You can ask your doctor or pharmacist for information about STRATTERA that was written for healthcare professionals. For more information about STRATTERA call 1-800-Lilly-Rx (1-800-545-5979) or visit www.strattera.com.

What are the ingredients in STRATTERA?

Active ingredient: atomoxetine hydrochloride.

Inactive ingredients: pregelatinized starch, dimethicone, gelatin, sodium lauryl sulfate, FD&C Blue No. 2, synthetic yellow iron oxide, titanium dioxide, red iron oxide, and edible black ink.

This Medication Guide has been approved by the US Food and Drug Administration.

Last reviewed on RxList: 6/29/2012
This monograph has been modified to include the generic and brand name in many instances.

>

PATIENT INFORMATION

MEDICATION GUIDE

STRATTERA®
(Stra-TAIR-a)
(atomoxetine hydrochloride)

Read the Medication Guide that comes with STRATTERA® before you or your child starts taking it and each time you get a refill. There may be new information. This Medication Guide does not take the place of talking to your doctor about your treatment or your child's treatment with STRATTERA.

What is the most important information I should know about STRATTERA?

The following have been reported with use of STRATTERA:

1. Suicidal thoughts and actions in children and teenagers:

Children and teenagers sometimes think about suicide, and many report trying to kill themselves. Results from STRATTERA clinical studies with over 2200 child or teenage ADHD patients suggest that some children and teenagers may have a higher chance of having suicidal thoughts or actions. Although no suicides occurred in these studies, 4 out of every 1000 patients developed suicidal thoughts. Tell your child or teenager's doctor if your child or teenager (or there is a family history of):

  • has bipolar illness (manic-depressive illness)
  • had suicide thoughts or actions before starting STRATTERA

The chance for suicidal thoughts and actions may be higher:

  • early during STRATTERA treatment
  • during dose adjustments

Prevent suicidal thoughts and action in your child or teenager by:

  • paying close attention to your child or teenager's moods, behaviors, thoughts, and feelings during STRATTERA treatment
  • keeping all follow-up visits with your child or teenager's doctor as scheduled

Watch for the following signs in your child or teenager during STRATTERA treatment:

  • anxiety
  • agitation
  • panic attacks
  • trouble sleeping
  • irritability
  • hostility
  • aggressiveness
  • impulsivity
  • restlessness
  • mania
  • depression
  • suicide thoughts

Call your child or teenager's doctor right away if they have any of the above signs, especially if they are new, sudden, or severe. Your child or teenager may need to be closely watched for suicidal thoughts and actions or need a change in medicine.

2. Severe liver damage:

STRATTERA can cause liver injury in some patients. Call your doctor right away if you or your child has the following signs of liver problems:

  • itching
  • right upper belly pain
  • dark urine
  • yellow skin or eyes
  • unexplained flu-like symptoms

3. Heart-related problems:

  • sudden death in patients who have heart problems or heart defects
  • stroke and heart attack in adults
  • increased blood pressure and heart rate

Tell your doctor if you or your child has any heart problems, heart defects, high blood pressure, or a family history of these problems.

Your doctor should check you or your child carefully for heart problems before starting STRATTERA. Your doctor should check your blood pressure or your child's blood pressure and heart rate regularly during treatment with STRATTERA.

Call your doctor right away if you or your child has any signs of heart problems such as chest pain, shortness of breath, or fainting while taking STRATTERA.

4. New mental (psychiatric) problems in children and teenagers:

  • new psychotic symptoms (such as hearing voices, believing things that are not true, being suspicious) or new manic symptoms

Call your child or teenager's doctor right away about any new mental symptoms because adjusting or stopping STRATTERA treatment may need to be considered.

What Is STRATTERA?

STRATTERA is a selective norepinephrine reuptake inhibitor medicine. It is used for the treatment of attention deficit and hyperactivity disorder (ADHD). STRATTERA may help increase attention and decrease impulsiveness and hyperactivity in patients with ADHD.

STRATTERA should be used as a part of a total treatment program for ADHD that may include counseling or other therapies.

STRATTERA has not been studied in children less than 6 years old.

Who should not take STRATTERA?

STRATTERA should not be taken if you or your child:

  • are taking or have taken within the past 14 days an anti-depression medicine called a monoamine oxidase inhibitor or MAOI. Some names of MAOI medicines are Nardil® (phenelzine sulfate), Parnate® (tranylcypromine sulfate) and Emsam® (selegiline transdermal system).
  • have an eye problem called narrow angle glaucoma
  • are allergic to anything in STRATTERA. See the end of this Medication Guide for a complete list of ingredients.
  • have or have had a rare tumor called pheochromocytoma.

STRATTERA may not be right for you or your child. Before starting STRATTERA tell your doctor or your child's doctor about all health conditions (or a family history of) including:

  • have or had suicide thoughts or actions
  • heart problems, heart defects, irregular heart beat, high blood pressure, or low blood pressure
  • mental problems, psychosis, mania, bipolar illness, or depression
  • liver problems

Tell your doctor if you or your child is pregnant, planning to become pregnant, or breastfeeding.

Can STRATTERA be taken with other medicines?

Tell your doctor about all the medicines that you or your child takes including prescription and nonprescription medicines, vitamins, and herbal supplements. STRATTERA and some medicines may interact with each other and cause serious side effects. Your doctor will decide whether STRATTERA can be taken with other medicines.

Especially tell your doctor if you or your child takes:

  • asthma medicines
  • anti-depression medicines including MAOIs
  • blood pressure medicines
  • cold or allergy medicines that contain decongestants

Know the medicines that you or your child takes. Keep a list of your medicines with you to show your doctor and pharmacist.

Do not start any new medicine while taking STRATTERA without talking to your doctor first.

How should STRATTERA be taken?

  • Take STRATTERA exactly as prescribed. STRATTERA comes in different dose strength capsules. Your doctor may adjust the dose until it is right for you or your child.
  • Do not chew, crush, or open the capsules. Swallow STRATTERA capsules whole with water or other liquids. Tell your doctor if you or your child cannot swallow STRATTERA whole. A different medicine may need to be prescribed.
  • Avoid touching a broken STRATTERA capsule. Wash hands and surfaces that touched an open STRATTERA capsule. If any of the powder gets in your eyes or your child's eyes, rinse them with water right away and call your doctor.
  • STRATTERA can be taken with or without food.
  • STRATTERA is usually taken once or twice a day. Take STRATTERA at the same time each day to help you remember. If you miss a dose of STRATTERA, take it as soon as you remember that day. If you miss a day of STRATTERA, do not double your dose the next day. Just skip the day you missed.
  • From time to time, your doctor may stop STRATTERA treatment for a while to check ADHD symptoms.
  • Your doctor may do regular checks of the blood, heart, and blood pressure while taking STRATTERA. Children should have their height and weight checked often while taking STRATTERA. STRATTERA treatment may be stopped if a problem is found during these check-ups.
  • If you or your child takes too much STRATTERA or overdoses, call your doctor or poison control center right away, or get emergency treatment.

What are possible side effects of STRATTERA?

See “What is the most important information I should know about STRATTERA?” for information on reported suicidal thoughts and actions, other mental problems, severe liver damage, and heart problems.

Other serious side effects include:

  • serious allergic reactions (call your doctor if you have trouble breathing, see swelling or hives, or experience other allergic reactions)
  • slowing of growth (height and weight) in children
  • problems passing urine including
    • trouble starting or keeping a urine stream
    • cannot fully empty the bladder

Common side effects in children and teenagers include:

  • upset stomach
  • decreased appetite
  • nausea or vomiting
  • dizziness
  • tiredness
  • mood swings

Common side effects in adults include:

  • constipation
  • dry mouth
  • nausea
  • decreased appetite
  • dizziness
  • trouble sleeping
  • sexual side effects
  • menstrual cramps
  • problems passing urine

Other information for children, teenagers, and adults:

  • Erections that won't go away (priapism) have occurred rarely during treatment with STRATTERA. If you have an erection that lasts more than 4 hours, seek medical help right away. Because of the potential 5 for lasting damage, including the potential inability to have erections, priapism should be evaluated by a doctor immediately.
  • STRATTERA may affect your ability or your child's ability to drive or operate heavy machinery. Be careful until you know how STRATTERA affects you or your child.
  • Talk to your doctor if you or your child has side effects that are bothersome or do not go away.

This is not a complete list of possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

How should I store STRATTERA?

  • Store STRATTERA in a safe place at room temperature, 59 to 86°F (15 to 30°C).
  • Keep STRATTERA and all medicines out of the reach of children.

General information about STRATTERA

Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use STRATTERA for a condition for which it was not prescribed. Do not give STRATTERA to other people, even if they have the same condition. It may harm them.

This Medication Guide summarizes the most important information about STRATTERA. If you would like more information, talk with your doctor. You can ask your doctor or pharmacist for information about STRATTERA that was written for healthcare professionals. For more information about STRATTERA call 1-800-Lilly-Rx (1-800-545-5979) or visit www.strattera.com.

What are the ingredients in STRATTERA?

Active ingredient: atomoxetine hydrochloride.

Inactive ingredients: pregelatinized starch, dimethicone, gelatin, sodium lauryl sulfate, FD&C Blue No. 2, synthetic yellow iron oxide, titanium dioxide, red iron oxide, and edible black ink.

This Medication Guide has been approved by the US Food and Drug Administration.

Last reviewed on RxList: 6/29/2012
This monograph has been modified to include the generic and brand name in many instances.

Disclaimer

Strattera Consumer

IMPORTANT: HOW TO USE THIS INFORMATION: This is a summary and does NOT have all possible information about this product. This information does not assure that this product is safe, effective, or appropriate for you. This information is not individual medical advice and does not substitute for the advice of your health care professional. Always ask your health care professional for complete information about this product and your specific health needs.

ATOMOXETINE - ORAL

(A-toe-MOX-e-teen)

COMMON BRAND NAME(S): Strattera

WARNING: Studies have shown that a small number of people (especially children/teenagers) who take atomoxetine for attention-deficit hyperactivity disorder (ADHD) may experience worsening of their condition, other mental/mood symptoms, or suicidal thoughts/attempts. Therefore, it is very important to talk with the doctor about the risks and benefits of this medication (especially for children/teenagers).

Tell the doctor immediately if you notice worsening of your condition/other psychiatric conditions, unusual behavior changes (including possible suicidal thoughts/attempts), or other mental/mood changes (including new/worsening anxiety, panic attacks, trouble sleeping, irritability, hostile/angry feelings, hallucinations, delusions, impulsive actions, severe restlessness, very rapid speech). Be especially watchful for these symptoms when you first start this medication or when the dose is changed.

USES: Atomoxetine is used to treat attention-deficit hyperactivity disorder (ADHD). It works by helping to restore the balance of certain natural chemicals in the brain (neurotransmitters). It may help to increase the ability to pay attention, concentrate, stay focused, and stop fidgeting.

HOW TO USE: Read the Medication Guide provided by your pharmacist before you start using atomoxetine and each time you get a refill. If you have any questions regarding the information, consult your doctor or pharmacist.

This medication may be taken with or without food. Take this medication as prescribed, usually either as a single daily dose in the morning or divided into two doses in the morning and late afternoon/early evening; or as directed by your doctor.

Swallow the capsules whole. Do not crush, chew, or open the capsules. The powder in the capsules can irritate the eyes. Wash your hands and any surface that comes in contact with the powder. If the powder gets in your eyes, flush with plenty of water and contact your doctor right away.

Your dosage is based on your medical condition and response to therapy. Do not increase your dose or take it more frequently than prescribed.

Use this medication regularly in order to get the most benefit from it. Remember to use it at the same time(s) each day.

Inform your doctor if your symptoms persist or worsen.

Disclaimer

Strattera Consumer (continued)

SIDE EFFECTS: See also Warning section.

Stomach upset, nausea, vomiting, constipation, fatigue, loss of appetite, headache, dry mouth, dizziness, trouble sleeping, menstrual cycle changes, or mood changes may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor immediately if any of these unlikely but serious side effects occur: weight loss, decrease in sexual ability/desire (e.g., impotence, ejaculation problems), difficulty urinating, unusually fast/irregular heartbeat, fainting, numbness/tingling.

This medication may rarely cause serious problems such as heart attacks or stroke. Seek immediate medical attention if you experience any of the following: chest/jaw/left arm pain, sudden severe headache, weakness on one side of the body, confusion, slurred speech, sudden vision changes (e.g., double vision, loss of vision).

Atomoxetine has very rarely caused very serious liver problems. If you notice any of the following highly unlikely but very serious side effects, seek immediate medical attention: yellowing of skin or eyes, dark urine, severe stomach pain, "flu-like" symptoms (e.g., fever, chills, unexplained fatigue). If you experience any of these symptoms ask your doctor about whether or not you should ever take atomoxetine again.

Rarely, males may have a painful or prolonged erection lasting 4 or more hours. If this occurs, seek immediate medical attention, or permanent problems could occur.

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Read the Strattera (atomoxetine hcl) Side Effects Center for a complete guide to possible side effects »

PRECAUTIONS: Before taking atomoxetine, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: glaucoma (narrow angle).

Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver disease, heart disease (e.g., high blood pressure, fast/irregular heartbeat or long QT syndrome, cardiomyopathy, structural heart abnormalities, past heart attacks), family history of irregular heartbeat (cardiac sudden death, QT prolongation in the EKG), low blood pressure, strokes, bladder or prostate problems, certain adrenal problem (pheochromocytoma), mental/mood disorders (such as bipolar disorder, depression, suicide attempts, family history of suicide).

This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.

To minimize dizziness or fainting, get up slowly from a lying or seated position (especially when you first start using this drug or if your doctor changes your dose).

Caution is advised when using this drug in the elderly because they may be more sensitive to its side effects, especially dizziness.

Caution is advised when using this drug in children because it may have a minor effect on weight, growth rate, and final height. Monitor your child's weight and height and consult your doctor or pharmacist for more details.

This medication should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor.

It is not known whether this drug passes into breast milk. Consult your doctor before breast-feeding.

Disclaimer

Strattera Consumer (continued)

DRUG INTERACTIONS: Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with them first.

Avoid taking MAO inhibitors (isocarboxazid, linezolid, methylene blue, moclobemide, phenelzine, procarbazine, rasagiline, selegiline, tranylcypromine) within 2 weeks before, during, and after treatment with this medication. In some cases a serious (possibly fatal) drug interaction may occur.

Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription products you may use, especially of: asthma drugs (e.g., albuterol, metaproterenol), fluoxetine, paroxetine, quinidine.

Check the labels on all your medicines (e.g., cough-and-cold products, diet aids) because they may contain ingredients that could increase your heart rate or blood pressure. Ask your pharmacist about the safe use of those products.

This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.

OVERDOSE: If overdose is suspected, contact your local poison control center or emergency room immediately. US residents can call the US national poison hotline at 1-800-222-1222. Canadian residents should call their local poison control center directly. Symptoms of overdose may include: unusually fast heartbeat, severe headache.

NOTES: Do not share this medication with others.

Laboratory and/or medical tests (e.g., pulse and blood pressure, liver function tests) should be performed periodically to monitor your progress or check for side effects. Consult your doctor for more details.

If you have heart disease, your doctor should perform certain heart tests (EKG, echocardiogram) before you start taking atomoxetine.

Keep all medical appointments with your doctor.

MISSED DOSE: If you miss a dose, use it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.

STORAGE: Store at room temperature at 77 degrees F (25 degrees C) away from light and moisture. Brief storage between 59-86 degrees F (15-30 degrees C) is permitted. Do not store in the bathroom. Keep all medicines away from children and pets.

Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.

Information last revised October 2011. Copyright(c) 2011 First Databank, Inc.

Strattera Patient Information Including Side Effects

Brand Names: Strattera

Generic Name: atomoxetine (Pronunciation: AT oh mox e teen)

What is atomoxetine (Strattera)?

Atomoxetine affects chemicals in the brain and nerves that contribute to hyperactivity and impulse control.

Atomoxetine is used to treat attention deficit hyperactivity disorder (ADHD).

Atomoxetine may also be used for purposes not listed in this medication guide.

Strattera 10 mg

white, imprinted with Lilly 3227, 10 mg

Strattera 100 mg

brown, imprinted with Lilly 3251, 100 mg

Strattera 18 mg

gold/white, imprinted with Lilly 3238, 18 mg

Strattera 25 mg

blue/white, imprinted with Lilly 3228, 25 mg

Strattera 40 mg

blue, imprinted with Lilly 3229, 40 mg

Strattera 60 mg

blue/yellow, imprinted with Lilly 3239, 60 mg

Strattera 80 mg

brown/white, imprinted with Lilly 3250, 80 mg

What are the possible side effects of atomoxetine (Strattera)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop taking atomoxetine and call your doctor at once if you have a serious side effect such as:

  • chest pain, shortness of breath, fast or uneven heartbeats;
  • feeling like you might pass out;
  • unusual thoughts or behavior, aggression, hallucinations (seeing things that are not there);
  • nausea, pain in your upper stomach, itching, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);
  • increased blood pressure (severe headache, blurred vision, buzzing in your ears, anxiety, confusion, seizure);
  • urinating less than usual or not at all; or
  • numbness, burning pain, or tingly feeling.

Less serious side effects may include:

  • feeling irritable;
  • feeling dizzy or drowsy;
  • constipation;
  • cough, dry mouth;
  • skin rash or itching;
  • sleep problems (insomnia);
  • increased menstrual cramps; or
  • impotence, loss of interest in sex, or trouble having an orgasm.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Read the Strattera (atomoxetine hcl) Side Effects Center for a complete guide to possible side effects »

What is the most important information I should know about atomoxetine (Strattera)?

Do not use atomoxetine if you have used an MAO inhibitor such as furazolidone (Furoxone), isocarboxazid (Marplan), phenelzine (Nardil), rasagiline (Azilect), selegiline (Eldepryl, Emsam, Zelapar), or tranylcypromine (Parnate) in the last 14 days. A dangerous drug interaction could occur, leading to serious side effects.

You should not use atomoxetine if you are allergic to it, or if you have glaucoma or pheochromocytoma (tumor of the adrenal gland).

Some ADHD medicines have caused sudden death in children and adolescents with serious heart problems or congenital heart defects. Tell your doctor if you have any heart problems.

You may have suicidal thoughts or behavior while taking atomoxetine. Watch for symptoms of depression, unusual behavior, or thoughts of hurting yourself. Your doctor may need to check you at regular visits while you are taking this medication.

In addition to you watching for changes in your mood or behavior, your family or caregivers should be alert to changes in your mood or symptoms.

Do not use an open or broken capsule. If the medicine from inside the capsule gets into your eyes, rinse thoroughly with water and call your doctor.

Atomoxetine may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.

Side Effects Centers

Strattera Patient Information including How Should I Take

What should I discuss with my healthcare provider before taking atomoxetine (Strattera)?

You should not use atomoxetine if you are allergic to it, or if you have glaucoma or pheochromocytoma (tumor of the adrenal gland).

Do not use atomoxetine if you have used an MAO inhibitor such as furazolidone (Furoxone), isocarboxazid (Marplan), phenelzine (Nardil), rasagiline (Azilect), selegiline (Eldepryl, Emsam, Zelapar), or tranylcypromine (Parnate) in the last 14 days. A dangerous drug interaction could occur, leading to serious side effects.

Some ADHD medicines have caused sudden death in children and adolescents with serious heart problems or congenital heart defects.

To make sure you can safely take atomoxetine, tell your doctor if you have any of these other conditions:

  • a congenital heart defect;
  • heart disease, a heart rhythm disorder, or recent heart attack;
  • coronary artery disease;
  • a history of stroke, blood clots, or heart attack;
  • high or low blood pressure;
  • liver disease;
  • problems with urination;
  • a personal or family history of mental illness, psychotic disorder, bipolar illness, depression, or suicide attempt; or
  • if anyone in your family has died suddenly from a heart problem.

You may have suicidal thoughts or behavior while taking atomoxetine. Watch for symptoms of depression, unusual behavior, or thoughts of hurting yourself. Your doctor may need to check you at regular visits while you are taking this medication.

In addition to you watching for changes in your mood or behavior, your family or caregivers should be alert to changes in your mood or symptoms.

FDA pregnancy category C. It is not known whether atomoxetine is harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using this medication.

It is not known whether atomoxetine passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

Atomoxetine is not meant for long-term use. Because ADHD may be a long-term condition, especially in children and young adults, your doctor may recommend another ADHD medication after you stop taking atomoxetine.

Long-term use of atomoxetine can slow a child's growth. Tell your doctor if the child using this medication is not growing or gaining weight properly.

Do not give atomoxetine to a child younger than 6 years old without the advice of a doctor.

How should I take atomoxetine (Strattera)?

Take exactly as prescribed by your doctor. Do not take in larger or smaller amounts or for longer than recommended. Follow the directions on your prescription label.

Take this medicine with a full glass of water.

Atomoxetine is usually taken once daily, but it may be taken in the morning and late afternoon. Follow your doctor's instructions.

It is important to use atomoxetine regularly to get the most benefit. Get your prescription refilled before you run out of medicine completely.

Do not use a capsule that has been opened or accidentally broken. The medicine from inside the capsule can be dangerous if it gets in your eyes. If you must handle a broken capsule, ask your doctor or pharmacist how to safely handle and dispose of the tablet.

Store at room temperature away from moisture and heat.

Side Effects Centers

Strattera Patient Information including If I Miss a Dose

What happens if I miss a dose (Strattera)?

Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose (Strattera)?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose symptoms may include drowsiness, agitation, hyperactivity, unusual behavior, stomach problems, blurred vision, dry mouth, and fast heartbeat.

What should I avoid while taking atomoxetine (Strattera)?

Avoid using or handling an open or broken capsule. If the medicine from inside the capsule gets in your eyes, rinse them thoroughly with water and call your doctor.

Atomoxetine may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.

What other drugs will affect atomoxetine (Strattera)?

Tell your doctor about all other medicines you use, especially:

  • albuterol (Proventil, Ventolin);
  • amiodarone (Cordarone, Pacerone);
  • bupropion (Wellbutrin, Zyban);
  • celecoxib (Celebrex);
  • cimetidine (Tagamet);
  • doxorubicin (Adriamycin);
  • methadone (Dolophine, Methadose);
  • metoclopramide (Reglan);
  • quinidine (Quin-G);
  • ritonavir (Norvir, Kaletra);
  • ranitidine (Zantac);
  • terbinafine (Lamisil);
  • an antidepressant such as citalopram (Celexa), clomipramine (Anafranil); escitalopram (Lexapro), fluoxetine (Prozac, Sarafem), fluvoxamine (Luvox), paroxetine (Paxil), or sertraline (Zoloft); or
  • antihistamines or sleep medicine such as diphenhydramine (Benadryl, Unisom, and others) or chlorpheniramine (Chlor-Trimeton and others).

This list is not complete and other drugs may interact with atomoxetine. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.

Where can I get more information?

Your pharmacist can provide more information about atomoxetine.


Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.

Copyright 1996-2012 Cerner Multum, Inc. Version: 9.01. Revision date: 4/18/2011.

Your use of the content provided in this service indicates that you have read,understood and agree to the End-User License Agreement,which can be accessed by clicking on this link.

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