Platelet aggregation inhibitors are drugs that the clumping of blood platelets (platelet aggregation) inhibit. They are used in medicine to enhance the growth of blood clots (thrombi) particularly in the arteries (arteries) to prevent. Thus, for example in the prevention and treatment of strokes, heart attacks and other circulatory disorders decreed. Dealing Linguistically platelet aggregation inhibitors is often (as well as the anticoagulant) blood as described.

The most commonly used platelet aggregation inhibitors are:

* Aspirin (including ASA, Aspirin ®)
* Clopidogrel (Plavix ®, Iscover ®)
* A combination of aspirin and dipyridamole (Aggrenox ®)
* Ticlopidine (including Ticlyd ®, Desitic ®)