How is it used?
Calan is used to treat supraventricular tachycardia, a disturbance of the rhythm of the heart. It is also used to monitor the heart rate response to other rhythm disturbances, specifically atrial fibrillation and atrial flutter. Calan is a calcium channel blocker. It works by slowing down electrical conduction in the heart, slowing the heart rate and / or normalizing the heart rate.