Answer
Warfarin inhibits the formation of active clotting factors II, VII, IX and X, helping prevent venous thrombosis and embolisation, but has no direct effect on an established blood clot.
Sources for this answer
- Marevan 0.5mg Tablets and Warfarin 0.5mg TabletsADVANZ Pharma · emc · SmPC §5.1 Pharmacodynamic properties · Version 10Document updated
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