Definition
Platelet Aggregation Inhibitors are herbs that prevent platelets from collecting at a point in the blood vessels to make a clot. If a blood vessel is ruptured, platelets collect at the point of tear and block the leak till the blood vessel is repaired. That is their purpose and it is good. But some times the balance between Anticoagulants and Anticlotting Factors is upset the clots begin to form in the blood vessels when they are not needed. This may block a blood vessel. This clot may float around in the blood circulation and block the flow. It may cause a stroke or a heart attack.
When there is a risk of formation of such an unwanted clot, the patient is administered a Platelet Aggregation Inhibitor.