Avas Gold 20 Cap belongs to a class of medication called 'cardiovascular drugs' used to prevent heart attack and stroke. It also lowers bad cholesterol and triglyceride (TG) levels. Heart attack refers to blocked blood flow to the heart due to blockage of arteries. The blockage is mostly a build-up of cholesterol, fat, and other substances that form a plaque in the arteries which feed the heart (coronary arteries). A stroke occurs due to blocked blood flow to the brain.