vitamin K antagonist
Vitamin K antagonists (VKA) are a group of substances that reduce blood clotting by reducing the action of vitamin K. The term "vitamin K antagonist" is technically a misnomer, as the drugs do not directly antagonize the action of vitamin K in t ...
. It is a derivative of
phenindione
Phenindione is an anticoagulant which functions as a Vitamin K antagonist.
Phenindione was introduced in the early 1950s. It acts similar to warfarin
Warfarin, sold under the brand name Coumadin among others. It is used as an anticoagul ...