SIDE EFFECTS: Headache, fatigue, drowsiness, dizziness, stomach upset and anxiety may occur the first several days as your body adjusts to the medication. If any of these effects continue or become bothersome, inform your doctor. Notify your doctor if you develop: rapid/pounding or irregular heartbeat, rash, confusion, incoordination, slurred speech, fever, flu-like symptoms, difficulty breathing, unusual bruising or bleeding, jaundice, seizures. This medication may cause drowsiness or dizziness. Use caution operating machinery or engaging in activities requiring alertness. It is important to maintain good oral hygiene by brushing and flossing your teeth regularly since this medication can cause gum disorders. If you notice other effects not listed above, contact your doctor or pharmacist.

PRECAUTIONS: Tell your doctor your medical history, especially of: kidney disease, blood disorders, liver disease, lung problems, diabetes, heart disease, thyroid disorder, any allergies. This medication is not recommended for use during pregnancy. Consult your doctor. This medication appears in breast milk. Consult your doctor before breast-feeding.

DRUG INTERACTIONS: Tell your doctor of any over-the-counter or prescription medication you may take including: other medication for seizures, aspirin, acetaminophen, digoxin, steroids (e.g., prednisone), disulfiram, cyclosporine, "blood thinners" (e.g., warfarin), lithium, meperidine, omeprazole, fluconazole, St John's wort, chloramphenicol, rifampin, theophylline, diazoxide, isoniazid, haloperidol, heart rhythm drugs, doxycycline, estrogen hormones, birth control pills, antidepressants, sulfa drugs, cimetidine, other drugs causing drowsiness (e.g., antihistamines), diabetes medication, narcotic pain medicine (e.g., codeine). Avoid the use of alcoholic beverages while taking this medication as it can alter the drug's effects. This drug may interfere with the effectiveness of birth control pills. Discuss using other methods of birth control with your doctor. Do not start or stop any medicine without doctor or pharmacist approval.

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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