Antiplatelets are non habit-forming medications that help prevent the formation of blood clots by keeping platelets from binding (platelet aggregation). Platelets are a component of blood. They are essential in the clotting process that stops wounds and cuts from bleeding excessively. Without platelets to stop the bleeding, a person would bleed to death.

Despite the positive role of platelets in the blood, excessive platelet activity can be dangerous. In some situations, platelets may begin to form blood clots inside of blood vessels, increasing the risk of heart attack and stroke. Antiplatelet medications may be prescribed for heart patients to reduce the likelihood that platelets will gather (aggregate) and form potentially harmful blood clots.

Antiplatelet medications are available as both prescription and over-the-counter medications. The most commonly used antiplatelet is aspirin. Aspirin should not be taken with anticoagulants unless instructed by a physician. Children also should never be given antiplatelets unless under the direction of a physician.