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Atomoxetine

Atomoxetine capsule is a selective norepinephrine reuptake inhibitor indicated for the treatment of Attention-Deficit/Hyperactivity Disorder (ADHD).

Medication guideLabel updated 2026-01-07

Selected manufacturer label information, organised into consistent sections by Sofidex. Read the full label at DailyMed ↗

Boxed warning

WARNING: SUICIDAL IDEATION IN CHILDREN AND ADOLESCENTS 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 atomoxetine 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. Atomoxetine is approved for ADHD in pediatric and adult patients. Atomoxetine is not approved for major depressive disorder. Pooled analyses of short-term (6 to 18 weeks) placebo-controlled trials of atomoxetine 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 atomoxetine compared to placebo. The average risk of suicidal ideation in patients receiving atomoxetine was 0.4% (5/1357 patients), compared to none in placebo-treated patients (851 patients). No suicides occurred in these trials. WARNING: SUICIDAL IDEATION IN CHILDREN AND ADOLESCENTS See full prescribing information for complete boxed warning. • Increased risk of suicidal ideation in children or adolescents • No suicides occurred in clinical trials • Patients started on therapy should be monitored closely

Drug facts

Used for
  • Atomoxetine capsules are selective norepinephrine reuptake inhibitor medicine. It is used for the treatment of attention deficit and hyperactivity disorder (ADHD). Atomoxetine capsules may help increase attention and decrease impulsiveness and hyperactivity in patients with ADHD.
  • Atomoxetine capsules should be used as a part of a total treatment program for ADHD that may include counseling or other therapies.
  • Atomoxetine capsules have not been studied in children less than 6 years old.
Do not take if
  • Atomoxetine capsules 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 atomoxetine capsules. See the end of this Medication Guide for a complete list of ingredients.

What it is used for

  • Atomoxetine capsules are selective norepinephrine reuptake inhibitor medicine. It is used for the treatment of attention deficit and hyperactivity disorder (ADHD). Atomoxetine capsules may help increase attention and decrease impulsiveness and hyperactivity in patients with ADHD.
  • Atomoxetine capsules should be used as a part of a total treatment program for ADHD that may include counseling or other therapies.
  • Atomoxetine capsules have not been studied in children less than 6 years old.

The most important thing to know

  • The following have been reported with use of atomoxetine capsules:

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 atomoxetine capsules 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 atomoxetine capsules
  • The chance for suicidal thoughts and actions may be higher:
  • early during atomoxetine capsules 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 atomoxetine capsules 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 atomoxetine capsules 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:

  • Atomoxetine capsules 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 atomoxetine capsules.

Your doctor should check your blood pressure or your child’s blood pressure and heart rate regularly during treatment with atomoxetine capsules.

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 atomoxetine capsules.

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 atomoxetine capsules treatment may need to be considered.

Side effects, and when to stop

  • 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
    • o trouble starting or keeping a urine stream
    • o 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
  • sexual side effects
  • problems passing urine
  • Other information for children, teenagers, and adults:
  • Erections that won’t go away (priapism) have occurred rarely during treatment with atomoxetine capsules. If you have an erection that lasts more than 4 hours, seek medical help right away. Because of the potential for lasting damage, including the potential inability to have erections, priapism should be evaluated by a doctor immediately.
  • Atomoxetine capsules may affect your ability or your child’s ability to drive or operate heavy machinery. Be careful until you know how atomoxetine capsules 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.

Who should not take it

  • Atomoxetine capsules 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 atomoxetine capsules. See the end of this Medication Guide for a complete list of ingredients.
  • have or have had a rare tumor called pheochromocytoma.
  • Atomoxetine capsules may not be right for you or your child. Before starting atomoxetine capsules 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
  • are pregnant or plan to become pregnant. It is not known if atomoxetine will harm your unborn baby. Talk to your doctor if you are pregnant or plan to become pregnant.
  • o There is a pregnancy registry for females who are exposed to ADHD medications, including atomoxetine capsule, during pregnancy. The purpose of the registry is to collect information about the health of females exposed to atomoxetine and their baby. If you or your child becomes pregnant during treatment with atomoxetine capsules, talk to your healthcare provider about registering with the National Pregnancy Registry of ADHD Medications at 1-866-961-2388 or visit online at https://womensmentalhealth.org/adhdmedications/.
  • are breastfeeding or plan to breastfeed. It is not known if atomoxetine passes into your breast milk. Talk to your doctor about the best way to feed your baby if you take atomoxetine capsules.

Can atomoxetine capsules 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. Atomoxetine capsules and some medicines may interact with each other and cause serious side effects. Your doctor will decide whether atomoxetine capsules 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 atomoxetine capsules without talking to your doctor first.

Storing it

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

General information about atomoxetine capsules

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

This Medication Guide summarizes the most important information about atomoxetine capsules. If you would like more information, talk with your doctor. You can ask your doctor or pharmacist for information about atomoxetine capsules that was written for healthcare professionals. For more information about atomoxetine capsules, call Glenmark Pharmaceuticals Inc., USA at 1 (888) 721-7115.

How should atomoxetine capsules be taken?

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

Cite this page

NLM

sofidex [Internet]. Daloreum; c2026. Atomoxetine; [reviewed 2026 Aug 2; cited 2026 Nov 10]. Available from: https://sofidex.com/patients/medicines/atomoxetine

APA 7th

sofidex. (2026, August 2). Atomoxetine. Daloreum. Retrieved November 10, 2026, from https://sofidex.com/patients/medicines/atomoxetine

AMA 11th

Atomoxetine. sofidex. Reviewed August 2, 2026. Accessed November 10, 2026. https://sofidex.com/patients/medicines/atomoxetine

The cited date is today’s, because a citation records when you read the page. The reviewed date is when a clinician last checked it.