antifibrinolytic agent

Pronunciation: (AN-tee-fy-BRIH-noh-LIH-tik AY-jent)

A type of drug that helps the blood clot. It prevents the breakdown of a protein called fibrin, which is the main protein in a blood clot. Antifibrinolytic agents may be used to help prevent or treat serious bleeding in patients who have certain conditions, such as hemophilia, very heavy menstrual bleeding, or some types of vascular tumors. They may also be used to help prevent or control bleeding during or after surgery or after a traumatic injury.

Source: NCI Dictionary of Cancer Terms