Phenindione is an anticoagulant which functions as a

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 antagonise the action of vitamin K in t ...

. Phenindione was introduced in the early 1950s. It acts similar to

warfarin Warfarin, sold under the brand name Coumadin among others, is a medication that is used as an anticoagulant (blood thinner). It is commonly used to prevent blood clots such as deep vein thrombosis and pulmonary embolism, and to prevent st ...

, but it has been associated with hypersensitivity reactions, so it is rarely used and warfarin is preferred.

References

External links

* Vitamin K antagonists Indandiones {{blood-drug-stub