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PROVIGIL (modafinil) is a wakefulness-promoting agent for oral administration. Modafinil is a racemic compound. The chemical name for modafinil is 2-[(diphenylmethyl) sulfinyl] acetamide. The molecular formula is C15H15NO2S and the molecular weight is 273.35.
The chemical structure is:
Modafinil is a white to off-white, crystalline powder that is practically insoluble in water and cyclohexane. It is sparingly to slightly soluble in methanol and acetone. PROVIGIL tablets contain 100 mg or 200 mg of modafinil and the following inactive ingredients: lactose monohydrate, microcrystalline cellulose, pregelatinized starch, croscarmellose sodium, povidone, and magnesium stearate.
What are the possible side effects of modafinil (Provigil)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop using modafinil and call your doctor at once if you have any of these serious side effects:
- fever, sore throat, headache, and vomiting with a severe blistering, peeling, and red skin rash;
- bruising, severe tingling, numbness, pain, muscle weakness;
- easy bruising or bleeding;
- white patches or sores inside your mouth or on your lips;
- hallucinations, unusual thoughts or...
What are the precautions when taking modafinil (Provigil)?
Before taking modafinil, tell your doctor or pharmacist if you are allergic to it; or to armodafinil; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: a certain heart problem (left ventricle thickening), a history of previous reaction (e.g., chest pain, irregular heartbeat) to stimulants.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: high blood pressure, heart problems (e.g., chest pain, heart attack, heart valve problem), liver problems, kidney...
Last reviewed on RxList: 11/29/2010
This monograph has been modified to include the generic and brand name in many instances.
Additional Provigil Information
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Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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