Last updated: March 2026
How Much Does Warfarin (Coumadin) Cost?
Cost Breakdown by Type
| Type / Procedure | Without Insurance | With Insurance |
|---|---|---|
| Warfarin 5mg Tablet | $4 – $10 | $0 – $5 |
| Warfarin 2mg Tablet | $4 – $10 | $0 – $5 |
| Warfarin 1mg Tablet | $4 – $10 | $0 – $5 |
What Affects the Cost
- Brand-name vs. generic availability
- Insurance formulary tier placement
- Pharmacy choice (retail vs. mail-order vs. Costco)
- Manufacturer savings cards and coupons
- Dosage and quantity prescribed
- Geographic location
Insurance Coverage
Typical coverage: Tier 1 generic — widely covered; requires regular INR monitoring
Most insurance plans use a tiered formulary: Tier 1 (generic) $0-$15 copay, Tier 2 (preferred brand) $25-$75, Tier 3 (non-preferred brand) $50-$150, Tier 4 (specialty) $100-$500+. Prior authorization may be required for certain medications. Step therapy may require trying cheaper alternatives first.
How to Save Money
- Always ask for generic when available — saves 50-90%
- Use GoodRx, RxSaver, or similar discount cards
- Costco pharmacy is open to non-members and often has lowest prices
- Mark Cuban's Cost Plus Drugs offers transparent low pricing
- Manufacturer patient assistance programs provide free medication to qualifying patients
- HSA/FSA funds can cover medication costs tax-free
Related Procedures & Costs
Frequently Asked Questions
Warfarin costs $4 to $15 for a 30-day supply without insurance. It is one of the least expensive blood thinners, though regular INR testing adds to overall treatment cost.
Warfarin has a narrow therapeutic range and many food/drug interactions. Regular INR blood tests (usually monthly when stable) ensure the dose keeps blood clotting in a safe range.
Warfarin is much cheaper but requires regular monitoring and dietary restrictions. Newer drugs like Eliquis and Xarelto are easier to manage but cost $500+ per month without insurance.