OVERDOSE: If overdose is suspected, contact your local poison control center at 1-800-222-1222 (USA) or emergency room immediately. Symptoms of overdose may include convulsions, cool or clammy skin, severe dizziness or headache, hallucinations, drowsiness, slow or shallow breathing, fainting, irritability, sleeplessness, anxiety, weakness, sweating, confusion, unconsciousness, unusual fast heartbeat, or chest pain.

NOTES: Do not share this medication with others.

MISSED DOSE: If you miss a dose, take as soon as remembered unless the next scheduled dose is within 2 hours. If so, 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 moisture and sunlight. Do not store in the bathroom.

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.