Dexedrine (Dextroamphetamine) Patient Information: Missed a Dose and What Should I Avoid at RxList

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May 26, 2012

Dexedrine

Narcolepsy »

What is narcolepsy?

Narcolepsy is a chronic disease of the central nervous system. Excessive daytime sleepiness (EDS) is the main symptom and is present in 100% of patients with narcolepsy. Other primary symptoms of narcolepsy include:

loss of muscle tone (cataplexy),
distorted perceptions (hypnagogic hallucinations), and
inability to move or talk (sleep paralysis).

Additional symptoms include disturbed nocturnal sleep and automatic behavior (patients carry out certain actions without conscious awareness). All of the symptoms of narcolepsy may be present in various combinations and degrees of severity.

Narcolepsy usually begins in teenagers or young adults and affects both sexes equally. The first symptom to appear is excessive daytime sleepiness, which may remain unrecognized for a long time in that it develops gradually over time. The other symptoms can follow excessive daytime sleepiness by months...

Read the Narcolepsy article »

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Dexedrine

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Dexedrine Patient Information including If I Miss a Dose

What happens if I miss a dose (Dexedrine)?

Take the missed dose as soon as you remember. If it is almost time for your next dose, or if it is already evening, skip the missed dose and take the medicine the next morning. 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 (Dexedrine)?

Seek emergency medical attention if you think you have used too much of this medicine. An overdose of dextroamphetamine 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 dextroamphetamine (Dexedrine)?

Dextroamphetamine can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.

Do not take dextroamphetamine late in the day. A dose taken too late in the day can cause sleep problems (insomnia).

Avoid drinking fruit juices or taking vitamin C at the same time you take dextroamphetamine. These can make your body absorb less of the medicine.

What other drugs will affect dextroamphetamine (Dexedrine)?

Before taking dextroamphetamine, tell your doctor if you are using any of the following drugs:

blood pressure medications;
a diuretic (water pill);
cold or allergy medicines (antihistamines);
acetazolamide (Diamox);
chlorpromazine (Thorazine);
ethosuximide (Zarontin);
guanethidine (Ismelin);
haloperidol (Haldol);
lithium (Eskalith, Lithobid);
methenamine (Hiprex, Mandelamine, Urex);
phenytoin (Dilantin), phenobarbital (Luminal, Solfoton);
propoxyphene (Darvon, Darvocet);
reserpine;
sodium bicarbonate (Alka-Seltzer); or
an antidepressant such as amitriptyline (Elavil), amoxapine (Asendin), clomipramine (Anafranil), desipramine (Norpramin), imipramine (Tofranil), or nortriptyline (Pamelor).

This list is not complete and there may be other drugs that can interact with dextroamphetamine. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.

Where can I get more information?

Your pharmacist can provide more information about dextroamphetamine.

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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