What are anticoagulants? | 合法醫療器材資訊網

2021年5月11日—Anticoagulantsaremedicinesthatpreventthebloodfromclottingasquicklyoraseffectivelyasnormal.Somepeoplecallanticoagulantsblood ...

Our blood has a complex system of chemicals in it, which, when activated, cause blood clots to form. This is called the clotting cascade. This is normally a good thing; its activated if we have an injury, like a bleeding wound. The clotting cascade causes a clot to form, stopping the bleeding.

However, some people get problems when blood clots form at the wrong time, or in the wrong places. Anticoagulants are used to treat this, or stop it from happening.

Anticoagulants interfere with different points in the clotting cascade.

Warfarin[1], acenocoumarol[2] and phenindione[3] block the effects of vitamin K. They are also called vitamin K antagonists. Vitamin K is needed to make important proteins (clotting factors) in the clotting cascade. So, blocking vitamin K stops the clotting cascade from working as well. It usually takes two or ...