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Antiplatelet Medicines for Stroke and Transient Ischemic Attack (TIA)

Índice de Materias

Antiplatelet Medicines for Stroke and Transient Ischemic Attack (TIA)


Nombre genéricoNombre de marca
aspirinBayer, Bufferin, Ecotrin,
aspirin with dipyridamoleAggrenox

How It Works

Antiplatelet medicines reduce blood clot formation by preventing the smallest blood cells (platelets) from sticking together and forming blood clots.

Why It Is Used

Aspirin is the most commonly used medicine to prevent stroke. But all of these medicines can be used to reduce the risk of stroke in people who have already had a transient ischemic attack (TIA) or ischemic stroke.

How Well It Works

Aspirin reduces the risk of stroke and heart attack or another transient ischemic attack (TIA).

Studies have shown that the combination of aspirin and extended-release dipyridamole reduces the risk of stroke and is a safe and effective alternative to aspirin alone.1

Clopidogrel is a safe and effective alternative to aspirin.1

It is important for each person to work with his or her doctor to find the best medicine.

Side Effects

All medicines have side effects. But many people don't feel the side effects, or they are able to deal with them. Ask your pharmacist about the side effects of each medicine you take. Side effects are also listed in the information that comes with your medicine.

Here are some important things to think about:

Allergic reaction

Call 911 or other emergency services right away if you have:

Call your doctor if you have:


Call 911 or other emergency services right away if you have:

Call your doctor now or seek immediate medical care if you have:

Common side effects of these medicines include:

See Drug Reference for a full list of side effects. (Drug Reference is not available in all systems.)

What To Think About

Aspirin is the least expensive option to prevent blood clots in people who have had a stroke or TIA.

For more information about taking daily aspirin, see the topic Low-Dose Aspirin Therapy.

If you do not take aspirin, talk to your doctor before you start taking aspirin every day.

Las Medidas prácticas les ayudan a las personas a participar activamente en la gestión de una condición de salud. Blood Thinners Other Than Warfarin: Taking Them Safely

Taking medicine

Medicine is one of the many tools your doctor has to treat a health problem. Taking medicine as your doctor suggests will improve your health and may prevent future problems. If you don't take your medicines properly, you may be putting your health (and perhaps your life) at risk.

There are many reasons why people have trouble taking their medicine. But in most cases, there is something you can do. For suggestions on how to work around common problems, see the topic Taking Medicines as Prescribed.

Advice for women

If you are pregnant, breast-feeding, or trying to get pregnant, do not use any medicines unless your doctor tells you to. Some medicines can harm your baby. This includes prescription and over-the-counter medicines, vitamins, herbs, and supplements. And make sure that all your doctors know that you are pregnant, breast-feeding, or planning to get pregnant.


Follow-up care is a key part of your treatment and safety. Be sure to make and go to all appointments. And call your doctor if you are having problems. It's also a good idea to know your test results and keep a list of the medicines you take.

Complete the new medication information form (PDF) to help you understand this medication.



  1. Sacco RL, et al. (2008). Aspirin and extended-release dipyridamole versus clopidogrel for recurrent stroke. New England Journal of Medicine, 359(12): 1238–1251.

Créditos para Antiplatelet Medicines for Stroke and Transient Ischemic Attack (TIA)

By Healthwise Staff
Primary Medical Reviewer E. Gregory Thompson, MD - Internal Medicine
Specialist Medical Reviewer Karin M. Lindholm, DO - Neurology
Last Revised August 9, 2013

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