The mechanism of action of Rivaroxaban, used in the treatment of heparin induced thrombocytopenia and thrombosis syndrome is:: (A) Direct factor Xa inhibitor, (B) Activated factor VIIa, (C) Vitamin K antagonist, (D) None of the above
Answer is A. Rivaroxaban is the first orally active Factor Xa inhibitor. Useful in Heparin induced thrombocytopenia and thrombosis syndrome. Ref: Harrisons principles of internal medicine, 18th edition, Page 2737