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 page contains side effects data for the generic drug atomoxetine. It is possible that some of the dosage forms included below 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
As well as its needed effects, atomoxetine (the active ingredient contained in Strattera) may cause unwanted side effects that require medical attention.
If any of the following side effects occur while taking atomoxetine, check with your doctor immediately:Less common:
Some atomoxetine side effects may not need any medical attention. As your body gets used to the medicine these side effects may disappear. Your health care professional may be able to help you prevent or reduce these side effects, but do check with them if any of the following side effects continue, or if you are concerned 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.
It is possible that some side effects of Strattera may not have been reported. These can be reported to the FDA here. Always consult a healthcare professional for medical advice.
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