If you or your child find it hard to focus on everyday tasks, or if you often feel restless and act without thinking, you might be dealing with Attention-Deficit Hyperactivity Disorder, also known as ADHD. Managing these challenges can feel overwhelming, but medical treatments like dextroamphetamine are designed to help bring calm and clear focus to your daily life.
Dextroamphetamine is also prescribed for a sleep disorder called narcolepsy, which causes overwhelming daytime sleepiness and sudden sleep attacks. Taking this medicine safely requires understanding how it works, what side effects to watch for, and how to follow your doctor's instructions carefully.
Key Takeaways
- Dextroamphetamine is a powerful stimulant medicine used for ADHD and narcolepsy.
- Always swallow extended-release capsules whole without chewing, crushing, or breaking them.
- Share your full medical history and current list of medicines with your doctor before starting.
- Watch closely for serious heart, mental, or circulatory side effects and get help right away if they occur.
- Keep your medicine locked up safely away from children and never share it with anyone else.
Calculate regular sleep cycles based on bedtime or wake up time
What Is Dextroamphetamine?
Simply put, dextroamphetamine belongs to a group of medicines called stimulants. It works by changing the levels of certain natural chemicals in your brain called neurotransmitters. By balancing these chemicals, it helps you pay attention better, stay focused on tasks, and control impulsive behaviors.
If you have ADHD, this medicine helps you complete your daily work or school activities in an orderly way. If you have narcolepsy, it helps your brain stay awake and alert during daytime hours. It is a powerful prescription tool that requires careful medical guidance.
Before You Start Taking This Medicine
Dextroamphetamine is not the right choice for everyone. Before your doctor prescribes this medicine, you must share your complete health history. If you have any of the medical conditions listed below, tell your doctor right away.
| Health Condition or Topic | Why It Matters |
|---|---|
| Mental Health Issues | Anxiety, panic attacks, thoughts of self-harm, family history of mental illness, or Tourette syndrome. |
| Heart Conditions | High blood pressure, history of heart attacks, stroke, structural heart defects, or irregular heartbeats. |
| Other Medical Issues | Glaucoma, kidney or liver disease, thyroid problems, seizures, or blood circulation issues in your fingers and toes like Raynaud disease. |
| Allergies | Any past allergic reaction to dextroamphetamine, other amphetamines, foods, dyes, or preservatives. |
| Pregnancy and Nursing | Whether you are pregnant, planning to become pregnant, breastfeeding, or have a past history of substance use. |
How to Use This Medicine Properly
Using this medicine exactly as your doctor prescribes is vital for your safety and health. Always follow the specific instructions provided on your prescription label.
- Take your exact prescribed dose with a full glass of water.
- Try to take your medicine at the exact same time every day to keep a steady level in your body.
- If the medicine upsets your stomach, you can take it with a meal, or you can take it on an empty stomach if you prefer.
- The most important rule: These are extended-release capsules. Do not crush, chew, split, or open them. Swallow the capsules completely whole.
- Keep taking your medicine every day until your doctor tells you it is safe to stop.
Important Note for Parents:
Doctors will carefully track the height and weight of children taking dextroamphetamine. This medicine can sometimes reduce appetite, which may slow growth temporarily.
What Should I Do If I Miss a Dose?
If you forget to take your medicine, take it as soon as you remember later that day. However, if it is almost time for your next scheduled dose, skip the missed dose completely.
Just wait and take your next dose at the regular time. Never take two doses at the same time to make up for a missed dose, as this can cause dangerous side effects.
What Happens If You Take Too Much? (Overdose)
If you believe you or someone else has taken too much of this medicine, you must act quickly. Call 911 in the US or 999 in the UK right away, contact your local poison control center, or go straight to the nearest hospital emergency department (ER or A&E). Do not wait for symptoms to appear.
Interactions With Other Medicines
Dextroamphetamine can interact with many other medicines and supplements. Always give your doctor and pharmacist a complete list of everything you take, including vitamins and herbal products.
| Medicine Category | Details and Safety Guidance |
|---|---|
| Never Combine With | MAO inhibitors, linezolid antibiotic, intravenous methylene blue, or other weight-loss or alertness stimulants. |
| Use With Caution | Blood pressure drugs, antidepressants, cold and allergy pills, opioid pain relievers, vitamin C, and baking soda. |
Side Effects and Things to Watch For
While taking this medicine, you need to monitor how you feel. Stimulants can alter your alertness and reaction times. Until you know how dextroamphetamine affects your body, avoid driving cars, riding bicycles, or operating heavy machinery.
Emergency Red Flags: When to Seek Immediate Medical Help
- Allergic Reactions: Rash, itching, hives, or swelling of your face, lips, tongue, or throat.
- Heart Symptoms: Chest pain, tightness, pain spreading to your arms or jaw, trouble breathing, fast or pounding heartbeat, or fainting.
- Mental Changes: Extreme restlessness, severe anger, seeing or hearing things that are not real, or thoughts of self-harm.
- Stroke Signs: Sudden numbness or weakness on one side of your body, slurred speech, confusion, or severe sudden headache.
- Serotonin Syndrome: Confusion, heavy sweating, high fever, rigid muscles, severe vomiting, or diarrhea.
- Circulation Issues: Cold, numb, pale, or painful fingers and toes that may change color.
Other common side effects are usually less severe. If they do not go away or start bothering you, let your doctor know:
- Mild headaches or occasional dizziness.
- Trouble falling asleep, especially if you take your dose too late in the day.
- Decreased appetite and mild weight loss.
- Blurry vision or dry mouth.
- Nausea or mild stomach discomfort.
How to Store and Throw Away Your Medicine
Proper storage is essential because dextroamphetamine is a controlled substance that can be misused or abused by others.
- Store your medicine in a secure location, preferably locked up, completely out of the reach of children and family pets.
- This prescription is for you only. Never share your medicine with friends, family members, or coworkers. Selling or giving your prescription to someone else is illegal and dangerous.
- Keep your capsules at room temperature away from excessive moisture, heat, and direct light.
- Talk to your pharmacist about the best way to dispose of expired or leftover medicine safely.
💡 Take-Home Message
Dextroamphetamine extended-release capsules are an effective medical tool for managing ADHD and narcolepsy when used correctly. Always follow your doctor's exact instructions, keep your medicine safely locked away, and report any severe side effects right away to protect your health and well-being.
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