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How to remember mechanism of actions of anticoagulants?

Asked by Kristi 

The mechanism of actions of various anticoagulants in a nutshell:

1. Aspirin: Irreversibly inhibits COX enzyme (antiplatelet)

2. Warfarin: Inhibits coagulation factors II, VIII, IX, X, Protein C and Protein S

3. Conventional heparin: Inhibition of factor Xa through inhibition of anti-thrombin III (AT-III) and also inhibition of factors II, IX, XI, XII

4. Low molecular weight heparin (LMWH heparin): Inhibition of factor Xa through AT-III and also inhibition of factor II

5. Fondaparinux: Inhibition of factor Xa through AT-III

6. Rivaroxaban: Direct Xa inhibitor

7. Hirudin: Direct IIa inhibitor