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Studies have shown that children and teenagers with attention-deficit hyperactivity disorder (ADHD; more difficulty focusing, controlling actions, and remaining still or quiet than other people who are the same age) who take viloxazine are more likely to think about killing themselves than children and teenagers with ADHD who do not take viloxazine.
Watch your child's behavior very carefully, especially at the beginning of treatment and any time his or her dose is increased or decreased. Ask other people who spend a lot of time with your child, such as brothers, sisters, and teachers to tell you if they notice changes in your child's behavior. Call your child's doctor right away if your child experiences any of these symptoms: acting more subdued or withdrawn than usual; feeling helpless, hopeless, or worthless; new or worsening depression; thinking or talking about harming or killing him- or herself or planning or trying to do so; extreme worry; agitation; panic attacks; difficulty falling asleep or staying asleep; irritability; aggressive or violent behavior; acting without thinking; extreme increase in activity or talking; frenzied, abnormal excitement; or any other sudden or unusual changes in behavior.
Talk to your doctor about the risks of giving viloxazine to your child.
WHY is this medicine prescribed?
Viloxazine is used to treat attention deficit hyperactivity disorder (ADHD). Viloxazine is in a class of medications called selective norepinephrine reuptake inhibitors. It works by increasing the levels of norepinephrine, a natural substance in the brain that is needed to control behavior.
HOW should this medicine be used?
Viloxazine comes as a capsule to take by mouth. Take once a day with or without food. Take viloxazine at around the same time every day.
Take viloxazine exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
Swallow the capsules whole; do not split, chew, or crush them.
If the capsules cannot be swallowed whole, open the capsule and sprinkle the contents onto a teaspoonful of applesauce. Swallow all of the mixture right away; do not chew the mixture. Swallow the mixture within two hours of mixing; do not store the mixture for future use.
Your doctor will probably start you on a low dose of viloxazine and increase your dose after at least 7 days.
Viloxazine may help to control the symptoms of ADHD but will not cure the condition. Continue to take viloxazine even if you feel well. Do not stop taking viloxazine without talking to your doctor.
Your doctor or pharmacist will give you the Medication Guide. Read the information carefully and ask your doctor or pharmacist if you have any questions. You can also visit http://www.fda.gov/Drugs to obtain the Medication Guide.
Are there OTHER USES for this medication?
This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.
What SPECIAL PRECAUTIONS should I follow?
Before taking viloxazine,
What SPECIAL DIETARY instructions should I follow?
Unless your doctor tells you otherwise, continue your normal diet.
What should I do IF I FORGET to take a dose?
Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.
What SIDE EFFECTS can this medicine cause?
Viloxazine may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
Viloxazine may affect children's weight gain. Your child's doctor will probably monitor your child carefully during his or her treatment with viloxazine. Talk to your child's doctor about the risks of giving this medication to your child.
Viloxazine may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.
If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online (http://www.fda.gov/Safety/MedWatch) or by phone (1-800-332-1088).
What should I do in case of OVERDOSE?
In case of overdose, call the poison control helpline at 1-800-222-1222. Information is also available online at http://www.poisonhelp.org/help. If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at 911.
Symptoms of overdose may include:
What should I know about STORAGE and DISPOSAL of this medication?
Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom).
Keep all medication out of sight and reach of children as many containers are not child-resistant. Always lock safety caps. Place the medication in a safe location - one that is up and away and out of their sight and reach. http://www.upandaway.org
Dispose of unneeded medications in a way so that pets, children, and other people cannot take them. Do not flush this medication down the toilet. Use a medicine take-back program. Talk to your pharmacist about take-back programs in your community. Visit the FDA's Safe Disposal of Medicines website http://goo.gl/c4Rm4p for more information.
What OTHER INFORMATION should I know?
Keep all appointments with your doctor and the laboratory.
Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.
Keep a written list of all of the prescription and nonprescription (over-the-counter) medicines, vitamins, minerals, and dietary supplements you are taking. Bring this list with you each time you visit a doctor or if you are admitted to the hospital. You should carry the list with you in case of emergencies.
This report on medications is for your information only, and is not considered individual patient advice. Because of the changing nature of drug information, please consult your physician or pharmacist about specific clinical use.
The American Society of Health-System Pharmacists, Inc. represents that the information provided hereunder was formulated with a reasonable standard of care, and in conformity with professional standards in the field. The American Society of Health-System Pharmacists, Inc. makes no representations or warranties, express or implied, including, but not limited to, any implied warranty of merchantability and/or fitness for a particular purpose, with respect to such information and specifically disclaims all such warranties. Users are advised that decisions regarding drug therapy are complex medical decisions requiring the independent, informed decision of an appropriate health care professional, and the information is provided for informational purposes only. The entire monograph for a drug should be reviewed for a thorough understanding of the drug's actions, uses and side effects. The American Society of Health-System Pharmacists, Inc. does not endorse or recommend the use of any drug. The information is not a substitute for medical care.
AHFS® Patient Medication Information™ Copyright, 2025. The American Society of Health-System Pharmacists®, 4500 East-West Highway, Suite 900, Bethesda, Maryland. All Rights Reserved. Duplication for commercial use must be authorized by ASHP.
Selected Revisions: October 15, 2025.