The following information is not a substitute for the knowledge and judgement of a healthcare professional. It should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. Always consult with your doctor, nurse, or pharmacist before taking medication.
Generic Name: atomoxetine
Note: This document contains side effect information about atomoxetine. Some of the dosage forms listed on this page may not apply to the brand name Strattera.
Common side effects of Strattera include: constipation, insomnia, decreased appetite, and xerostomia. Other side effects include: dermatitis, dysmenorrhea, erectile dysfunction, dizziness, dyspepsia, ejaculatory disorder, urinary hesitancy, ejaculation failure, and diaphoresis. See below for a comprehensive list of adverse effects.
Applies to atomoxetine: oral capsule
Along with its needed effects, atomoxetine (the active ingredient contained in Strattera) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur while taking atomoxetine:Less common
Some side effects of atomoxetine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:More common
Applies to atomoxetine: oral capsule
Very common (10% or more): Dry mouth (up to 35%), nausea (up to 26%), abdominal pain/discomfort (up to 18%), constipation (up to 11%), vomiting (up to 11%)
Common (1% to 10%): Dyspepsia, gastroenteritis, diarrhea, flatulence[Ref]
Very common (10% or more): Decreased appetite (up to 24%)
Common (1% to 10%): Decreased weight, anorexia[Ref]
Very common (10% or more): Increased heart rate (up to 23.4%), increased blood pressure (up to 21.5%)
Common (1% to 10%): Orthostatic hypotension, palpitations, flushing/hot flush, sinus tachycardia, tachycardia
Uncommon (0.1% to 1%): QT interval prolongation
Rare (less than 0.1%): Raynaud's phenomenon and/or peripheral vascular instability
Frequency not reported: Myocardial infarction[Ref]
Very common (10% or more): Erectile dysfunction (up to 21%)
Common (1% to 10%): Dysmenorrhea, delayed ejaculation/ejaculation disorder/ejaculation failure, sexual dysfunction, impotence, prostatitis, abnormal orgasm, irregular menstruation, testicular pain, male genital pain
Postmarketing reports: Priapism, male pelvic pain[Ref]
Very common (10% or more): Headache (up to 19%), somnolence/sedation (up to 11%)
Common (1% to 10%): Dizziness, tremor, syncope/syncope vasovagal, paraesthesia, feeling jittery, dysgeusia
Uncommon (0.1% to 1%): Seizures, hypoesthesia
Frequency not reported: Stroke[Ref]
Very common (10% or more): Insomnia (up to 19%)
Common (1% to 10%): Aggression/hostility, irritability, mood swings, depression/depressed mood, early morning awakening, abnormal dreams, decreased libido, sleep disorder, agitation, anxiety
Uncommon (0.1% to 1%): Suicide-related behavior (suicide attempts, suicidal ideation), psychotic/manic symptoms (e.g., hallucinations, delusional thinking, mania), restlessness, emotional lability, generalized anxiety disorder
Frequency not reported: Panic attacks, impulsivity, akathisia, hypomania
Postmarketing reports: Tics, libido changes, sensory disturbances, completed suicide[Ref]
Very common (10% or more): Hyperhidrosis (up to 15%)
Common (1% to 10%): Rash, excoriation, dermatitis, pruritus
Uncommon (0.1% to 1%): Urticaria[Ref]
Very common (10% or more): Fatigue (up to 10%)
Common (1% to 10%): Unexpected therapeutic response, chills, thirst, peripheral coldness/feeling cold, influenza, pyrexia, rigors, lethargy, asthenia, chest pain
Frequency not reported: Delayed growth (height and weight), sudden death[Ref]
Common (1% to 10%): Urinary retention, urinary hesitation/decreased urine flow, dysuria, pollakiuria
Uncommon (0.1% to 1%): Micturition urgency, enuresis[Ref]
Common (1% to 10%): Conjunctivitis, mydriasis, blurred vision[Ref]
Common (1% to 10%): Upper respiratory tract infection
Uncommon (0.1% to 1%): Pharyngitis, dyspnea
Frequency not reported: Pharyngolaryngeal pain, oropharyngeal pain[Ref]
Uncommon (0.1% to 1%): Increased blood bilirubin
Rare (less than 0.1%): Liver failure, abnormal/increased liver function tests, jaundice, hepatitis, liver injury, acute hepatic failure[Ref]
Uncommon (0.1% to 1%): Allergic reactions (anaphylactic reactions, angioneurotic edema, urticarial, rash)[Ref]
Uncommon (0.1% to 1%): Muscle spasms
Frequency not reported: Back pain
Postmarketing reports: Rhabdomyolysis[Ref]
1. "Product Information. Strattera (atomoxetine)." Lilly, Eli and Company, Indianapolis, IN.
Some side effects of Strattera may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.
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