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Other drug names: A-Am An-Az B C-Ch Ci-Cz D-Dh Di-Dz E F G H I-J K-L M-Mh Mi-Mz N-Nh Ni-Nz O P-Pl Pm-Pz Q-R S-Sn So-Sz T-To Tp-Tz U-V W-Z 0-9   

Modafinil

Why is this medication prescribed?

Modafinil is used to improve wakefulness in patients with narcolepsy, a condition that causes excessive daytime sleepiness. Modafinil is in a class of medications called central nervous system (CNS) stimulants.

How should this medicine be used?

Modafinil comes as a tablet to take by mouth. It is usually taken once a day in the morning. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take modafinil exactly as directed.

Modafinil may be habit forming. Do not take more or less of it or take it more often than prescribed by your doctor.

Other uses for this medicine

This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.

What special precautions should I follow?

Before taking modafinil,

  • tell your doctor and pharmacist if you are allergic to modafinil or any other medications.
  • tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking. Be sure to mention any of the following: anticoagulants (''blood thinners'') such as warfarin (Coumadin); antidepressants such as clomipramine (Anafranil) and desipramine (Norpramin); antifungals such as itraconazole (Sporanox) and ketoconazole (Nizoral); cyclosporine (Neoral, Sandimmune); diazepam (Valium); medications for seizures such as carbamazepine (Tegretol), phenobarbital (Luminal, Solfoton), and phenytoin (Dilantin); monoamine oxidase (MAO) inhibitors, including phenelzine (Nardil) and tranylcypromine (Parnate); propranolol (Inderal); and rifampin (Rifadin, Rimactane). Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
  • tell your doctor if you drink large amounts of alcohol or have a history of drug abuse; if you have ever had chest pain, irregular heartbeats, or other heart problems after taking a CNS stimulant; and if you have or have ever had high blood pressure, a heart attack, angina (chest pain), mental illness, a historyof drug abuse; or heart, liver, or kidney disease.
  • you should know that modafinil may decrease the effectiveness of oral contraceptives (birth control pills). Use another form of birth control while taking modafinil and for 1 month after you stop taking it.
  • tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking modafinil, call your doctor.
  • you should know that modafinil may affect judgment or thinking. Do not drive a car or operate machinery until you know how this medication affects you.
  • be aware that you should avoid alcohol while taking modafinil.

What special dietary instructions should I follow?

Unless your doctor tells you otherwise, continue your normal diet.

What should I do if I forget 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 medication cause?

Modafinil may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

  • headache
  • upset stomach
  • nervousness
  • difficulty falling asleep or staying asleep
  • dizziness
  • depression
  • diarrhea
  • runny nose
  • dry mouth
  • loss of appetite
  • vomiting
  • neck pain or stiffness
  • confusion or forgetfulness

Some side effects can be serious. The following symptoms are uncommon, but if you experience any of them, call your doctor immediately:

  • chest pain
  • fast, pounding, or irregular heartbeat
  • shortness of breath
  • rash or hives
  • fever, sore throat, chills, and other signs of infection

Modafinil may cause other side effects. Call your doctor if you have any unusual problems while taking 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). Throw away any medication that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medication.

What other information should I know?

Keep all appointments with your doctor.

Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.

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Last updated: Tue, 06 Jan 2009 00:20:03 GMT
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