Plavix (clopidogrel) prevents platelets in your blood from sticking together to form an unwanted blood clot that could block an artery. Plavix is used to lower your risk of having a stroke, blood clot, or serious heart problem after you've had a heart attack, severe chest pain , or circulation problems. Learn about Prilosec (Omeprazole) may treat, uses, dosage, side effects, drug interactions, warnings, patient labeling, reviews, and related medications. How to use Plavix. Read the Medication Guide provided by your pharmacist before you start taking clopidogrel and each time you get a refill. If you have any questions, ask your doctor or pharmacist. Prevents blood clots. Plavix (clopidogrel) is a cheap, generically available blood thinner that protects you from clots after you've had a heart attack or surgery. Prilosec (Omeprazole) is used to treat symptoms of gastroesophageal reflux disease (GERD), erosive esophagitis and Zollinger-Ellison syndrome. Plavix (clopidogrel) is a cheap, generically available blood thinner that protects you from clots after you've had a heart attack or surgery. Heparin is a good anticoagulant that prevents blood clots. However, you'll need to get frequent blood tests to make sure it's working well. Detailed drug Information for Plavix. Includes common brand names, drug descriptions, warnings, side effects and dosing information. Plavix is the brand name form of the generic drug clopidogrel bisulfate, an anti-platelet medication that's used to prevent blood clots. Blood clots can form in blood as a result of certain heart. Clopidogrel, sold under the trade name Plavix among others, is an antiplatelet medication used to reduce the risk of heart disease and stroke in those at high risk. It is also used together with aspirin in heart attacks and following the placement of a coronary artery stent (dual antiplatelet therapy). It is taken by mouth. Onset of effects is. Learn about Plavix (Clopidogrel Bisulfate) may treat, uses, dosage, side effects, drug interactions, warnings, patient labeling, reviews, and related medications.