⚕️ Full Prescribing Information
For complete safety information, warnings, and dosage guidelines:
View FDA Label (PDF) →📋 Overview
Warfarin is the traditional blood thinner used for decades. It requires regular blood tests (INR monitoring) and dietary restrictions but is inexpensive and effective.
How It Works
Warfarin blocks vitamin K-dependent clotting factors, preventing blood clot formation. It requires careful monitoring and dose adjustment.
✓ FDA Approved Uses
- Prevent blood clots
- Stroke prevention in atrial fibrillation
- Treat DVT and PE
- Heart valve replacement
⚡ Common Side Effects
Contact your doctor if these persist or worsen:
- Bleeding
- Bruising
- Nausea
- Stomach pain
- Hair loss
🚨 Serious Side Effects
Seek immediate medical attention if you experience:
- Severe bleeding
- Tissue death (skin/necrosis)
- Purple toes syndrome
- Major hemorrhage
⚠️ Do Not Use If
- Pregnancy
- Active bleeding
- Recent surgery
- Severe liver/kidney disease
📢 Important Warnings
- Regular INR monitoring required
- Many drug interactions
- Dietary vitamin K affects dosing
- Bleeding risk