<unk>  is an anticoagulant that functions as a vitamin K antagonist (like warfarin). It is a derivative of coumarin and is generic, so is marketed under many brand names worldwide.
Acenocoumarol
Dicoumarol
Difelikefalin
Fenpentadiol
Phenoperidine
Theramine
Tetrahydropapaveroline
Pentoxyverine