Chat with Pharmacy Staff


What are the side effects of Plavix?


Blood clots can trigger heart attacks and strokes when they form in blood vessels leading to the heart or brain. Plavix® (clopidogrel) helps prevent these harmful blood clots and is prescribed for people who face an increased risk for heart attacks and strokes.

Plavix® is generally well tolerated. Its most common side effects include abdominal or stomach pain, aching muscles, dizziness, and headache. Since blood clotting will take longer than normal while you're taking Plavix®, you may experience prolonged bleeding from cuts or abrasions or even from brushing your teeth. You may also bruise more easily. In rare cases, Plavix® may cause stomach bleeding. Symptoms of stomach bleeding include black, tarry stools and stomach pain. If you notice any serious bruising or bleeding, consult your doctor. There have been rare reports of a serious bleeding disorder called thrombotic thrombocytopenic purpura (TTP) associated with use of Plavix®. This side effect is most likely to occur during the first two weeks of treatment. People who suffer from bleeding disorders or stomach ulcers shouldn't take Plavix®. Be sure to tell your doctor if you have liver disease or if you're taking other drugs such as aspirin that can increase your risk of bleeding, since you may then be at greater risk of side effects from Plavix®.

Get information on information on thrombotic thrombocytopenic purpura in our Health Encyclopedia.

Back to Pharmacist FAQs

If you're looking for more specific answers to specific questions, ask a Walgreens pharmacist here.

Answers to questions regarding information about medications or health conditions are not for diagnostic or treatment purposes and are not conclusive as to the presence or absence of any health condition. Consult your physician for diagnosis and treatment of your medical condition. The information provided is not a substitute for medical advice. Advances in medicine may cause this information to become outdated, invalid or subject to debate. Professional opinions and interpretations of the scientific literature may vary. Walgreens' terms of use and general warranty disclaimer apply to all services provided. If you are in need of immediate medical attention, contact your physician, poison control center or emergency medical professional. If you need to speak with a pharmacist for non-emergency matters, contact your local Walgreens pharmacist or call a pharmacist toll-free at 1 (877) 250-5823.