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DRUG INTERACTIONS: Tell your doctor of all over-the-counter and prescription medication you may use including: medication for depression, anti-anxiety drugs (e.g., diazepam), anti-seizure drugs, other narcotic pain relievers (e.g., morphine), St John's wort, non-narcotic pain medicine (e.g., ibuprofen, naproxen), sleeping pills, sedatives, "blood thinners" (e.g., heparin, warfarin), methotrexate, corticosteroids (e.g., prednisone), cimetidine. Aspirin is an ingredient in many over-the-counter products. To prevent an overdose of aspirin, read the labels carefully before taking other pain relievers or cold products to be sure they do not contain aspirin. Consult your pharmacist if you are uncertain your over-the-counter products contain aspirin. 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.

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 and shallow breathing, unusual sleepiness, dizziness, decreased pupil size, cold and clammy skin, difficulty hearing, ringing in the ears, headache, sweating, thirst, nausea, vomiting, and loss of consciousness.

NOTES: This medication is a potent pain reliever to be used only as directed by the person for whom it was prescribed. Do not share this medication with others.

MISSED DOSE: If you miss a dose, take it as soon as remembered; do not take it if it is near the 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 between 59 and 86 degrees F (15 to 30 degrees C) away from heat and light. Do not store in the bathroom. Keep out of reach of children.

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.