DRUG INTERACTIONS: Tell your doctor of all nonprescription and prescription medication you may use, especially of other drugs that cause drowsiness such as: medicine for sleep, tranquilizers and other psychiatric medicines (e.g., MAO inhibitors such as phenelzine, selegiline, furazolidone, moclobemide), anti-seizure drugs, muscle relaxants, certain antihistamines (e.g., diphenhydramine), other narcotic pain relievers (e.g., codeine). Also report use of: procarbazine, "water pills" (diuretics), blood pressure medicines, cimetidine. This drug may interfere with certain laboratory tests (amylase and lipase). 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.

NOTES: Do not share this medication with others. Personal monitoring by a health care professional, along with breathing function tests are performed with this drug.

MISSED DOSE: Not applicable. This drug is given by a health professional.

STORAGE: Store at room temperature at or below 86 degrees F (30 degrees C) away from light and moisture. Protect from freezing.

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.