On this page
In short Fosfomycin price by strength What Fosfomycin is Who looks up Fosfomycin Where to get Fosfomycin How Pymander fits Common questions SourcesFosfomycin costs from $16.50 for one fill (1 packet (3 g)) at Cost Plus Drugs, depending on strength. It is the generic of Monurol.
Fosfomycin is a prescription medicine, so a licensed clinician has to decide it is right for you before a pharmacy can fill it. Prices as of October 11, 2026; no insurance needed.
Fosfomycin price by strength
| Strength | Price per fill | Pack | Cost Plus Drugs |
|---|---|---|---|
| 3 g | $16.50 | Packet, 1 Packet | View |
A 30 count is 30 units of the product (pills, capsules or the pack size Cost Plus lists), not a promise of 30 days. These are Cost Plus Drugs’ own cash prices, including their pharmacy fee. Shipping is added at their checkout. Pymander adds no fee or markup. Prices checked October 11, 2026 and can change.
Of the 14 medications in the Infections group priced per fill in our catalog, Fosfomycin costs less than 7 of the others. The middle price for that group is $17.81.
What Fosfomycin is
A one-dose antibiotic for bladder infections. It kills bacteria by stopping them from building their cell wall.
What it’s for
Uncomplicated bladder infections in women, including some caused by germs resistant to other drugs.
How it’s taken
One packet of granules stirred into half a cup of cold water and drunk right away, one time.
Good to know
It does not treat kidney infections. Fever, back or side pain, or vomiting with a UTI needs prompt care. Symptoms can take 2 to 3 days to ease.
The plain-language description on this page was written from public medical sources and has not been reviewed by a clinician. Use it to get oriented, then check with your own clinician or pharmacist.
Who looks up Fosfomycin
People search for Fosfomycin when they are dealing with UTI, bladder infection, cystitis. Fosfomycin is a prescription medicine, so a licensed clinician has to decide it is right for you before a pharmacy can fill it.
For more on what it treats and how it is taken, see Fosfomycin: what it treats, how to take it.
Where to get Fosfomycin
| Where | Price we can show | Note | Link |
|---|---|---|---|
| Cost Plus Drugs Mail-order pharmacy | $16.50 and up | Price includes their pharmacy fee. Shipping is per order. | Open |
| GoodRx Discount coupon | See price on their site | Free coupon prices at local pharmacies. Prices vary by pharmacy and ZIP code. | Open |
| Amazon Pharmacy Mail-order pharmacy | See price on their site | Search for this medication to see Amazon’s price. Prime members can add RxPass, a flat monthly fee for a list of common generics. | Open |
Only Cost Plus Drugs publishes a machine-readable price list, so it is the only price we quote. For the others we link to their pages and do not guess a number.
How Pymander fits
Pymander is an AI-native, cash-pay healthcare system. This catalog lists prices from outside sources so you can compare before you pay, and Pymander does not sell Fosfomycin or add a fee on top. You can text our free AI doctor with questions about a symptom or a medication, and bring the care note to the clinician who decides your treatment.
Common questions
How much does Fosfomycin cost without insurance?
Fosfomycin costs from $16.50 for one fill (1 packet (3 g)) at Cost Plus Drugs, depending on strength (October 11, 2026). Insurance is not billed.
Do I need a prescription for Fosfomycin?
Fosfomycin is a prescription medicine, so a licensed clinician has to decide it is right for you before a pharmacy can fill it.
Is there a cheaper way to buy Fosfomycin?
Compare Cost Plus Drugs with a discount coupon such as GoodRx at a local pharmacy, since prices differ by pharmacy and ZIP code. Ask the pharmacy for its cash price in writing before you pay.
Does Pymander charge extra for Fosfomycin?
No. The prices on this page are the outside source’s own prices. Pymander adds no fee or markup.