药物学抗凝血药适用于产生凝血危险的病人,也用于预防血凝的发展和血栓形成。肝素是一种极常用的非肠道性抗凝血药(虽然苄丙酮香豆素也是有效的非肠道抗凝血药,但一般很少采用)。口服抗凝血药包括香豆素衍生物(双香豆素,苯丙香豆素、苯丙酮香豆素钾和苯丙酮香豆素钠)和茚满二酮衍生物茴茚二酮。 Pharmacological anticoagulants are suitable for patients at risk of coagulation and also for preventing the development of blood clots and thrombosis. Heparin is a very commonly used parenteral anticoagulant (although warfarin is also potent parenteral anticoagulant, it is rarely used). Oral anticoagulants include coumarin derivatives (dicoumarol, phenprocoumon, potassium phenylpropione coumarin, and coumarin phenylpropione), and indane dione derivatives anadrin.