Warfarin
Absolute Contraindications
- Pregnancy (teratogenic), 48 hours postpartum (delay 5-7 days)
- Active bleeding
- Severe hypertension
Main Side Effects
- Bleeding (e.g., epistaxis, GI, intracranial)
- Skin necrosis (rare)
Main Interactions
- NSAIDs, antiplatelets & other blood thinners (increased bleeding risk)
- Amiodarone (enhanced warfarin effect)
Main Monitoring Requirements
- Regular INR monitoring
Pregnancy & Breastfeeding
- Avoid in pregnancy (use LMWH instead), breastfeeding generally safe