Clopidogrel Bisulfate is one the best known treatments for preventing blood clots in the body and keeping blood flow to the heart, brain and other organs normal. It is the generic name for the branded medication Plavix, which is a highly popular and prescribed medicine. Doctors generally put patients with heart attack and stroke risk or serious circulation problems due to hardened arteries on these tablets. Many patients with unstable angina or those with a history of heart attack or stroke are also advised to buy clopidrogel bisulfate drug.