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DRUG INTERACTIONS: Inform your doctor about all the medications you may use (both prescription and nonprescription) especially if you take: anti-depressants/anti-anxiety drugs, drugs used for an overactive thyroid, sparfloxacin, grepafloxacin, guanethidine, guanadrel, metrizamide, cabergoline, beta-blockers (e.g., propranolol), lithium, beta-blockers (e.g., propranolol), narcotic pain medication (e.g., codeine), drugs used to aid sleep, drowsiness-causing antihistamines (e.g., diphenhydramine), other drugs that may make you drowsy. Many cough-and-cold products contain ingredients that may add a drowsiness effect. Before using cough-and-cold medications, ask your doctor or pharmacist about the safe use of those products. 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 restlessness, muscle spasms, tremors, twitching, deep sleep or loss of consciousness, and seizures.

NOTES: Do not share this medication with others.

MISSED DOSE: If you miss a dose and take 1 dose daily: take as soon as remembered unless it is almost time for the next dose. In that case, skip the missed dose and resume your usual schedule. If you take more than 1 dose daily: take as soon as possible if it is within an hour or so of the missed dose. If not remembered within an hour, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.

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

MEDICAL ALERT: Your condition can cause complications in a medical emergency. For enrollment information call MedicAlert at 1-800-854-1166 (USA), or 1-800-668-1507 (Canada).

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.