DRUG INTERACTIONS: Tell your doctor of all nonprescription or prescription medication you may use, especially of: beta-blockers (e.g., propranolol, timolol- including eye drops), intravenous (IV) calcium, digoxin, high blood pressure drugs (e.g., water pills, ACE inhibitors), quinidine, disopyramide, carbamazepine, lithium, flecainide, theophylline, cyclosporine, neuromuscular blocking drugs (e.g., for surgery), inhaled anesthetics that can decrease the heart's pumping action. Mixing of IV verapamil and IV sodium bicarbonate/saline solutions, nafcillin, albumin, amphotericin B, hydralazine, aminophylline or trimethoprim/sulfa is not recommended (incompatible chemicals). 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 rapid, slow, or irregular heartbeat; dizziness; fainting; and loss of consciousness.

NOTES: EKG, blood pressure, and other heart monitoring will be performed during treatment. Laboratory tests (e.g., liver function tests) should be performed periodically to monitor for side effects. Do not share this medication with others.

MISSED DOSE: If you miss a dose consult your doctor or pharmacist.

STORAGE: Store at room temperature away from sunlight and moisture.

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).

Last Editorial Review: 3/2/2005

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