Which of the following is not used for throm-bopro phylaxis:: (A) Heparin, (B) Warfarin, (C) Antithrombin III, (D) Aspirin
Answer is C. Antithrombin is a peptide that is synthesised in the liver and circulates in the plasma . Other three are drugs that can be used prophylactically. From medical pharmacology padmaja 4th edition Page no 334