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Vyvanse Patient Information including If I Miss a Dose
In this Article
- What is lisdexamfetamine (Vyvanse)?
- What are the possible side effects of lisdexamfetamine (Vyvanse)?
- What is the most important information I should know about lisdexamfetamine (Vyvanse)?
- What should I discuss with my doctor before taking lisdexamfetamine (Vyvanse)?
- How should I take lisdexamfetamine (Vyvanse)?
- What happens if I miss a dose (Vyvanse)?
- What happens if I overdose (Vyvanse)?
- What should I avoid while taking lisdexamfetamine (Vyvanse)?
- What other drugs will affect lisdexamfetamine (Vyvanse)?
- Where can I get more information?
What happens if I miss a dose (Vyvanse)?
Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose, or if it is already evening. Taking this medicine late in the day can cause sleep problems. Do not take extra medicine to make up the missed dose.
What happens if I overdose (Vyvanse)?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. An overdose of lisdexamfetamine can be fatal.
Overdose symptoms may include restlessness, tremor, muscle twitches, rapid breathing, confusion, hallucinations, panic, aggressiveness, muscle pain or tenderness, muscle weakness, fever or flu symptoms, and dark colored urine. These symptoms may be followed by depression and tiredness. Other overdose symptoms include nausea, vomiting, diarrhea, stomach pain, uneven heartbeats, feeling light-headed, fainting, seizure (convulsions), or coma.
What should I avoid while taking lisdexamfetamine (Vyvanse)?
Lisdexamfetamine may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.
Avoid drinking fruit juices or taking vitamin C at the same time you take lisdexamfetamine. These can make your body absorb less of the medicine.
What other drugs will affect lisdexamfetamine (Vyvanse)?
Tell your doctor about all other medicines you use, especially:
- ammonium chloride, ascorbic acid (vitamin C), K-Phos;
- chlorpromazine (Thorazine);
- ethosuximide (Zarontin);
- guanfacine (Intuniv, Tenex);
- lithium (Eskalith, Lithobid);
- methenamine (Hiprex, Mandelamine, Urex);
- phenytoin (Dilantin), phenobarbital (Luminal, Solfoton);
- blood pressure medications;
- a diuretic (water pill);
- cold or allergy medicines (antihistamines);
- pain medication such as meperidine (Demerol) or propoxyphene (Darvon, Darvocet);
- antacids, sodium bicarbonate (Alka-Seltzer);
- stomach acid reducers such as cimetidine (Tagamet),esomeprazole (Nexium), famotidine (Pepcid), lansoprazole (Prevacid), nizatidine (Axid), omeprazole (Prilosec), or ranitidine (Zantac); or
- an antidepressant such as amitriptyline (Elavil), amoxapine (Asendin), clomipramine (Anafranil), desipramine (Norpramin), imipramine (Tofranil), or nortriptyline (Pamelor).
This list is not complete and other drugs may interact with lisdexamfetamine. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.
Where can I get more information?
Your pharmacist can provide more information about lisdexamfetamine.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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Additional Vyvanse Information
- Vyvanse Drug Interactions Center: lisdexamfetamine oral
- Vyvanse Side Effects Center
- Vyvanse Overview including Precautions
- Vyvanse FDA Approved Prescribing Information including Dosage
Vyvanse - User Reviews
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