Do you often find it hard to focus on a single task for very long? Or perhaps your child acts on sudden urges, struggles to sit still, and seems constantly restless every single day?
In medical terms, doctors call this pattern ADHD (Attention-Deficit Hyperactivity Disorder). To help manage these daily challenges, doctors often prescribe a non-stimulant medicine called Viloxazine.
Let us explore what this medicine is, how it works, and what you need to keep in mind to use it safely.
Key Takeaways at a Glance
- What it is: Viloxazine (brand name QELBREE) is a prescription medicine used to treat ADHD in children and adults.
- How it works: It acts as an SNRI, helping balance natural chemicals in your brain to boost focus and control sudden impulses.
- Safe dosing: Always swallow capsules whole. Never crush, chew, or break them unless your doctor gives specific instructions.
- Watch your mood: Pay close attention to sudden mood changes or thoughts of self-harm, and report them to your doctor right away.
- Never double up: If you miss a dose, simply skip it and take your next dose at the normal scheduled time.
What Kind of Medicine is Viloxazine?
Viloxazine (sold under the brand name QELBREE) is a prescription medicine designed specifically to treat ADHD. Its main job is to help you improve your attention span and control impulsive, sudden behaviors.
Simply put, it belongs to a group of medicines called SNRIs (Serotonin-Norepinephrine Reuptake Inhibitors). This means the medicine helps manage specific natural chemical messengers in your brain, leading to better focus and calmer daily behavior.
Things to Tell Your Doctor Before Starting This Medicine
Before you or your child start taking Viloxazine, share your complete medical history with your doctor. Certain health conditions require extra care when using this medicine.
| Health Condition | Why Your Doctor Needs to Know |
|---|---|
| Mental Health Issues | History of depression, mania, or bipolar disorder. |
| Self-Harm Thoughts | Any past thoughts, plans, or attempts of self-harm. |
| Heart Conditions | High blood pressure, irregular heartbeat, or other heart problems. |
| Kidney or Liver Disease | Any chronic conditions affecting kidney or liver function. |
| MAOI Medicine Use | If you took an MAOI medicine within the past 14 days. |
| Allergies | Known allergies to Viloxazine, dyes, or other foods. |
| Pregnancy & Nursing | If you are pregnant, planning to conceive, or breastfeeding. |
How to Use This Medicine Correctly
Always take this medicine exactly as your doctor prescribes it.
- Swallow the capsule whole with a glass of water.
- Try to take your dose at the exact same time every day.
- You can take it with or without food. However, if it upsets your stomach, take it with a meal.
- Most important rule: Never crush, chew, or open the capsules unless instructed. Swallow them whole.
- For children or those who struggle to swallow: If swallowing capsules is hard, you can carefully open the capsule. Sprinkle the medicine powder onto a teaspoon of applesauce and mix it gently. Swallow the entire mixture right away or within two hours. Do not chew the powder or the applesauce.
- Continue taking this medicine daily until your doctor tells you to stop.
Emergency Warning: Overdose
If you believe you or someone else has taken too much Viloxazine, call your local emergency services right away (dial 911 in the US/Canada, 999 in the UK, or go straight to the nearest Emergency Department / A&E). In Sri Lanka, contact the National Poisons Information Centre at the National Hospital of Sri Lanka.
What If You Miss a Dose?
If you miss a scheduled dose, take it as soon as you remember. However, if it is almost time for your next regular dose, skip the missed dose entirely.
Then, continue with your normal schedule. Never take a double dose to make up for a missed one.
Viloxazine and Other Medicine Interactions
When taking Viloxazine, you must manage other medicines carefully. Combining certain medicines can cause dangerous health reactions.
| Medicines to Avoid Completely | Examples |
|---|---|
| MAOI Medicines | Isocarboxazid, Phenelzine, Rasagiline, Selegiline. |
| Specific Prescription Drugs | Alosetron, Duloxetine, Ramelteon, Tasimelteon, Theophylline, Thioridazine, Tizanidine. |
| Medicines Requiring Doctor Review | Examples |
|---|---|
| Atomoxetine & Clozapine | Can interact with brain chemistry and alertness. |
| Melatonin & Pirfenidone | May alter sleep patterns or liver processing. |
| Mental Health Drugs | Certain treatments for depression or anxiety. |
This list is not complete. Always give your doctor a full list of every prescription drug, over-the-counter medicine, vitamin, and herbal supplement you take.
Things to Watch Out For During Treatment
- Regular Doctor Visits: Keep all follow-up appointments so your doctor can check how well the medicine works. Tell your doctor right away if your symptoms do not improve or if they get worse.
- Behavioral Changes: Watch for unusual mood shifts, agitation, increased anger, worsening depression, or memory trouble. If you or your family notice any thoughts of self-harm, contact your doctor right away. This is critical.
- Drowsiness and Dizziness: This medicine can make you feel sleepy or dizzy. Avoid driving or operating heavy machinery until you know how the medicine affects you. Drinking alcohol will make this drowsiness much worse.
- Poor Appetite: A reduced appetite is common during the first few weeks. To manage this, eat smaller meals more often throughout the day instead of three large meals. Tell your doctor if this loss of appetite continues.
- Child Growth: Higher doses of this medicine taken over long periods may slow growth in children. Your doctor will regularly check your child's height and weight.
Possible Side Effects of Viloxazine
| Serious Side Effects (Call Doctor Right away) | What to Look For |
|---|---|
| Allergic Reactions | Skin rashes, itching, swelling of the face, lips, tongue, or throat. |
| Mood Shifts | Agitation, severe irritability, confusion, or thoughts of self-harm. |
| Heart Changes | Fast, pounding, or irregular heartbeats. |
| Blood Pressure | Sudden spikes in blood pressure. |
| Common Mild Side Effects (Report if Persistent) | Examples |
|---|---|
| Sleep & Energy | Drowsiness, fatigue, and trouble falling asleep. |
| Mood & Stomach | Irritability, nausea, vomiting, and decreased appetite. |
How to Store and Dispose of Your Medicine
- Storage: Keep your medicine at room temperature (between 20°C to 25°C or 68°F to 77°F) away from moisture and direct heat. Always store it safely out of the reach of children and pets. Never use expired medicine.
- Disposal: The safest way to throw away expired or unwanted medicine is through a local drug take-back program. Ask your pharmacist or doctor about options near you. If a take-back program is unavailable, mix the unused capsules with unpalatable waste like used coffee grounds or dirt. Place the mixture inside a sealed plastic bag and throw it in your household trash.
Take-Home Message
- Viloxazine is a prescription non-stimulant medicine designed to manage ADHD symptoms by improving focus and curbing impulsive behaviors.
- Always share your complete medical history and current drug list with your doctor before starting treatment.
- Swallow capsules whole. Do not crush or chew them unless using the applesauce method for children.
- Report any sudden mood changes, behavioral shifts, or thoughts of self-harm to your doctor right away.
- Never take a double dose if you happen to miss a scheduled time.
- This medicine is prescribed specifically for you. Never share it with anyone else.
A Note from Dr. Priya Sammani
Managing ADHD takes patience, teamwork, and consistent medical guidance. Medicine like Viloxazine can be a helpful tool in your daily routine, but it works best alongside behavioral support and open communication with your healthcare team. If you ever feel unsure about your dose or notice unusual side effects, reach out to your doctor right away. Your health and safety always come first.
Sources & References:
1. Cleveland Clinic. Viloxazine Capsules: Uses, Dosage, and Side Effects. Available from: https://my.clevelandclinic.org/
2. Mayo Clinic. Attention-deficit/hyperactivity disorder (ADHD) in children and adults - Diagnosis and treatment. Available from: https://www.mayoclinic.org/
3. National Health Service (NHS UK). Attention deficit hyperactivity disorder (ADHD) treatment. Available from: https://www.nhs.uk/
4. U.S. Food and Drug Administration (FDA). QELBREE (viloxazine) extended-release capsules prescribing information. Available from: https://www.fda.gov/
5. National Institutes of Health (NIH / PubMed Central). Viloxazine in ADHD: Pharmacology, Efficacy, and Safety Profile.
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