<prompt> Which of the following is the mechanism of action of Penta saccharide?Factor XA inhibition, Thrombin inhibitionFactor XA inhibitionAntithrombin inhibitorThrombin inhibition  <response>: Ans. B. Factor XA inhibitionPenta saccharideMechanism of action: Factor Xa inhibitionExample: Fondaparinux, IdraparinuxNewer factor Xa inhibitor:a. Rivaroxabanb. Apixaban Both are given orally. 