Key takeaways:
Furosemide (Lasix) is a popular diuretic (“water pill”). The cost of furosemide without insurance depends on your dose, dosage form, and location.
Without insurance, the average retail cost for 30 tablets of generic furosemide 20 mg is $12.17. But you may be able to pay as little as about $10 with a free GoodRx coupon.
You can save on furosemide at many pharmacies by using a GoodRx coupon or signing up for GoodRx Companion. Other ways to save include filling a 3-month supply and using a tax-advantaged health account to pay for your prescription.
Save on related medications
Diuretics (“water pills”) are a common type of medication prescribed to manage heart-related conditions. Furosemide (Lasix) is a type of water pill called a loop diuretic. It’s a first-choice medication to reduce edema (swelling) for people living with heart failure.
Furosemide has been used for several decades and is available as a lower-cost generic. So if you’re wondering how much furosemide costs without insurance, you’ll find that prices are generally affordable. But there are still ways you could save on this water pill — or maybe even get it for free.
How much does furosemide cost without insurance?
Without insurance, the most common form of furosemide costs less than $10 per month. But prices vary depending on your dose and dosage form.
Furosemide comes as 20 mg, 40 mg, and 80 mg oral tablets. They’re sold as brand-name Lasix and generic furosemide. The generic version is also available as an oral solution (liquid) in 8 mg/mL and 10 mg/mL formulations.
Note: Furosemide also comes as an injection that can be given in hospital settings. This article focuses on the cost of oral furosemide, which is more commonly prescribed.
Many people take furosemide once a day in the morning to treat swelling. But if your swelling is more severe, you may need to take a second dose later in the day.
The table below highlights the average retail costs for different doses, formulations, and quantities of generic furosemide and brand-name Lasix.
Medication name, dose, and formulation | Quantity | Average retail price |
|---|---|---|
Furosemide 20 mg tablets | 30 | |
Furosemide 20 mg tablets | 90 | |
Furosemide 40 mg tablets | 30 | |
Furosemide 40 mg tablets | 90 | |
Furosemide 80 mg tablets | 30 | |
Furosemide 80 mg tablets | 90 | |
Lasix 20 mg tablets | 30 | |
Lasix 20 mg tablets | 90 | |
Lasix 40 mg tablets | 30 | |
Lasix 40 mg tablets | 90 | |
Lasix 80 mg tablets | 30 | |
Lasix 80 mg tablets | 90 | |
Furosemide 8 mg/mL solution | 60 mL (1 bottle) | |
Furosemide 8 mg/mL solution | 180 mL (3 bottles) | |
Furosemide 10 mg/mL solution | 60 mL (1 bottle) | |
Furosemide 10 mg/mL solution | 180 mL (3 bottles) |
Which factors affect the cost of furosemide?
Several factors affect the cost of furosemide. Some factors can raise the price, while others may lower it.
Brand vs. generic availability
Furosemide is the name of the generic version of the medication. The tablets are also available as brand-name Lasix. Filling your prescription for generic furosemide typically costs less than filling it for brand-name Lasix.
Generic medications help lower costs without sacrificing quality. So opting for generic versions when they’re available is one of the best ways to save on prescriptions. In fact, pharmacists automatically substitute generic medications when available unless a prescriber requests a brand-name medication.
Dosage, form, and quantity
Your out-of-pocket cost may vary depending on your dose and dosage form. For instance, furosemide tablets typically cost less than the oral solution. And it’s common for higher doses to cost more than lower doses. So if your dose changes, your prescription price may change, too.
How many tablets or bottles of solution you fill also affects the cost of furosemide. But as discussed later, filling a 90-day supply can potentially save you money in the long run.
Location
Your location may also affect the cost of furosemide. For instance, people living in New Orleans tend to pay more overall for prescription medications than people living in Atlanta, according to GoodRx research.
Pharmacy
Pharmacies may charge different out-of-pocket amounts for prescription medications — even within the same neighborhood. GoodRx can help you compare furosemide cash prices at various pharmacies in your area.
If one pharmacy offers lower prices than others, you can ask your prescriber to send your prescription there. If your prescription is already at a pharmacy, you can ask another pharmacy to transfer it to its location.
Insurance coverage
Using insurance (if you have it) or applying discounts can help lower the price of furosemide. But keep in mind that insurance copays and coinsurance can change. Your plan could also charge an annual deductible. So the cost of furosemide may be higher until you meet your deductible.
Review your plan’s summary of benefits and coverage and formulary (list of covered medications). This can help you determine if your plan covers furosemide and what you can expect to pay for it. If you’re unsure, you can also call the member services phone number on your prescription insurance card.
What to do if furosemide isn’t covered by your insurance
If your insurance doesn’t cover furosemide, try these options:
Use GoodRx to help lower your costs. (See below for more details.)
Ask your insurance company to make a formulary exception and cover furosemide for you. If your request is denied, you have the right to file an appeal to challenge the decision.
During the next open enrollment period, compare plans to see if another one offers better coverage for furosemide.
Ask your prescriber about alternatives
Furosemide isn’t the only diuretic available. Your insurance may offer better coverage for furosemide alternatives. Ask your prescriber if one of these diuretics would be an option for you:
A thiazide diuretic, such as hydrochlorothiazide (Microzide)
A thiazide-like diuretic, such as chlorthalidone (Thalitone, Hemiclor)
A mineralocorticoid receptor antagonist, such as spironolactone (Aldactone)
Ways to save on furosemide
There are ways to save on furosemide, even if you don’t have insurance. Below are five savings tips to consider.
1. Use a GoodRx coupon
GoodRx offers free coupons that can help you lower the cost of furosemide. These coupons provide savings at many pharmacies.
Here’s what you may pay for different quantities and formulations of generic furosemide when using a GoodRx coupon.
Medication name, dose, and formulation | Quantity | GoodRx price (as low as) |
|---|---|---|
Furosemide 20 mg tablets | 30 | |
Furosemide 20 mg tablets | 90 | |
Furosemide 40 mg tablets | 30 | |
Furosemide 40 mg tablets | 90 | |
Furosemide 80 mg tablets | 30 | |
Furosemide 80 mg tablets | 90 | |
Furosemide 8 mg/mL solution | 60 mL (1 bottle) | |
Furosemide 8 mg/mL solution | 180 mL (3 bottles) | |
Furosemide 10 mg/mL solution | 60 mL (1 bottle) | |
Furosemide 10 mg/mL solution | 180 mL (3 bottles) |
Here’s how to get a coupon:
Go to www.goodrx.com, or open the GoodRx app on your mobile device.
Type “furosemide,” “Lasix (generic),” or “Lasix (brand-name)” in the search bar.
Click “Start saving,” or tap or click return.
Select the correct dose, dosage form, and quantity, along with your location and pharmacy.
Choose to get your coupon by text or email, or print it out. You can also take a screenshot of the coupon with your mobile device.
If possible, show the coupon to the pharmacy staff before they fill your prescription to avoid delays in processing.
Keep in mind: GoodRx savings may vary by pharmacy and geographic location. The GoodRx website and app can help you compare prices in your area.
2. Enroll in GoodRx Companion
You may be able to save even more on furosemide with a GoodRx Companion subscription. Over 250 medications (including certain doses of furosemide) are available for free, with hundreds more for under $10 per month.
The GoodRx Companion program also includes benefits to help you cut your self-pay costs, such as lower prices for online care visits, discounts on dental care, and other health service savings.
3. See if you qualify for Medicare Extra Help
The Medicare Extra Help program helps reduce Medicare Part D costs for people with limited incomes. If you qualify, you will have no monthly premiums, no annual deductible, and low copays. This includes low copays for furosemide.
You can apply online for Medicare Extra Help. You can also call 1-800-772-1213 (or 1-800-325-0778 for TTY users) to apply over the phone.
4. Ask about 90-day supplies
Some pharmacies and insurance providers offer a discount when you buy a 3-month supply of medication. This may lower your overall monthly furosemide costs. Plus, it reduces the number of trips you need to make to the pharmacy.
What’s more, insurance providers may charge a lower copay or coinsurance amount if you use a preferred mail-order pharmacy to fill a 3-month supply. Check with your insurance provider to see if this is available for you.
5. Tap into your HSA, FSA, or HRA
Consider using a health savings account (HSA), flexible spending account (FSA), or health reimbursement arrangement (HRA) to buy furosemide. These accounts let you use pretax dollars for copays, coinsurance, and other qualified medical expenses. This can help you reduce spending through tax savings.
Just be sure to review your account’s rules regarding expiration dates. FSA dollars typically have an expiration date. But HSA funds roll over and can be saved for later. HRA dollars may or may not expire, depending on your account.
The bottom line
Furosemide (Lasix) is a popular diuretic (“water pill”) that’s available as both a brand-name and generic medication. Without insurance, the average retail cost for 30 tablets of generic furosemide 20 mg is $12.17. But you may be able to pay as little as about $10 with a free GoodRx coupon. The cost of furosemide without insurance depends on your dose, dosage form, and location.
GoodRx can help you save on furosemide at many pharmacies with a free coupon. You may be able to save more (or even get furosemide for free) with a GoodRx Companion subscription. Other ways to save include filling a 90-day supply and using a tax-advantaged health account to pay for your prescription.
Why trust our experts?
References
Ferrari, F., et al. (2025). Clinical pharmacology of loop diuretics in critical care. Clinical Pharmacokinetics.
Hikma Pharmaceuticals USA. (2025). Furosemide tablet; furosemide solution [package insert]. DailyMed.
Micro Labs. (2026). Furosemide- furosemide injection [package insert]. DailyMed.
U.S. Social Security Administration. (n.d.). Apply for Medicare Part D Extra Help program.
Validus Pharmaceuticals. (2025). Lasix- furosemide tablet [package insert]. DailyMed.
