Last updated: March 2026
How Much Does Furosemide Cost?
Cost Breakdown by Type
| Type / Procedure | Without Insurance | With Insurance |
|---|---|---|
| Furosemide 20mg (generic) | $4 – $10 | $0 – $4 |
| Furosemide 40mg (generic) | $4 – $12 | $0 – $5 |
| Furosemide 80mg (generic) | $4 – $15 | $0 – $6 |
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 — one of the most affordable diuretics; essential for fluid management
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
Generic furosemide costs $4 to $15 per month without insurance. It is one of the most affordable medications available and is included on virtually every $4 generic list.
Furosemide (Lasix) is a loop diuretic used to treat fluid retention (edema) from heart failure, liver disease, or kidney disease, as well as high blood pressure.
Yes, regular blood tests are recommended to monitor electrolytes, especially potassium, as well as kidney function. Potassium supplements may be needed.