<unk>  is an anticoagulant that functions as a vitamin K antagonist (like warfarin). It is a derivative of coumarin and is marketed under the brand names Sintrom and Sinthrome.
Acenocoumarol
Difetarsone
Dicumarol
Caroverine
Phenoperidine
Poractant Alfa
Amyl nitrite
Pentoxyverine