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 seizures, dizziness, headache, unusually fast heart- beat, muscle weakness, sleeplessness, or chest pain.

NOTES: Do not share this medication with others.

MISSED DOSE: Ask your doctor about what action to take if you should miss a dose. Do not "double-up" the dose.

STORAGE: Store at room temperature between 59 and 86 degrees F (between 15 and 30 degrees C) away from moisture and sunlight. Do not store in the bathroom. Do not puncture.

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.