anticoagulant
- n medicine that prevents or retards the clotting of blood
- It is thought that the anticoagulant drugs he had been taking had caused a tendency toward prolonged bleeding, and he went into shock.
- But warfarin, believes Chemist Link, is the best anticoagulant now available: it can be used in smaller doses than dicoumarin; it can be given by mouth, by injection or rectally.
- The best known anticoagulant, warfarin, is used in calculated overdoses as a rat poison.