Which of the following is the longest acting oral anticoagulant ?: (A) Bishydroxycoumarin, (B) Warfarin, (C) Acenocoumarol, (D) Phenindione
Answer is A. Ans. is 'a' i.e., Bishydroxycoumarin Bishydroxycoumarin (Dicumarol) is the longest acting oral anticoagulant. Ethylbiscoumacetate is the shoest acting anticoagulant.