A drug used to treat an irregular heartbeat and high blood pressure.
Antiarrhythmic drug that works as a beta blocker and also increases the length of the action potential; indicated in the treatment of life-threatening ventricular arrhythmias (e.g., ventricular tachycardia, ventricular fibrillation); side effects include aggravation of congestive heart failure and increased incidence of arrhythmias.
A drug used to treat abnormal heart rhythm, angina, and high blood pressure and to relieve symptoms in thyrotoxicosis. It is administered by mouth or injection; side-effects may include digestive upsets, tiredness, and dizziness.