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DRUG INTERACTIONS: Tell your doctor of all prescription and nonprescription drugs you may be using especially: MAO inhibitors (e.g., furazolidone, linezolid, phenelzine, selegiline, tranylcypromine), psychiatric drugs, tranquilizers, sleep medications, zidovudine, rifampin, other narcotic pain relievers, barbiturates, cimetidine, anti-seizure drugs, antihistamines (e.g., diphenhydramine), alcohol. Do not start or stop any medicine without doctor or pharmacist approval.

OVERDOSE: If overdose is suspected, contact your local poison control center or emergency room immediately. US residents can call the US national poison hotline at 1-800-222-1222. Canadian residents should call their local poison control center directly. Symptoms of overdose may include slow or shallow breathing, slow heart rate, small pupils, severe drowsiness, or unconsciousness.

NOTES: Do not share this medication with others. It is against the law.

MISSED DOSE: If you miss a dose, take as soon as remembered; do not take if it is almost time for the next dose, instead, skip the missed dose and resume your usual dosing schedule. Do not "double-up" the dose to catch up.

STORAGE: Store at room temperature away from light and moisture. Do not store in the bathroom.

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. Need help identifying pills and medications? Use the pill identifier tool on RxList.