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Antibiotic

Fosfomycin Price in Canada

fosfomycin 3g · Oral powder

Fosfomycin (fosfomycin 3g) costs $21–$41 per single-dose sachet in Canada. The cheapest option is Costco at $20.49 per single-dose sachet. Last updated: 2026-02-26.

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Pharmacy Price Comparison

PharmacyDrugFeeTotalNote
Costco$16.00 per single-dose sachet$4.49$20.49 per single-dose sachetCheapestNo membership needed
Walmart$22.00 per single-dose sachet$9.97$31.97 per single-dose sachet
Rexall$25.00 per single-dose sachet$12.99$37.99 per single-dose sachet
Shoppers Drug Mart$28.00 per single-dose sachet$12.99$40.99 per single-dose sachet

Provincial Coverage

Ontario Drug Benefit (ODB)

General Benefit

How to Save

Cheapest Pharmacy

Costco

$20.49 per single-dose sachet

Save $20.50 per single-dose sachet vs. Shoppers Drug Mart

Medical expense tax credit: eligible prescription costs may count toward the federal medical expense tax credit; CRA applies the lesser of 3% of net income or the annual threshold.

Drug Information

Brand Name
Fosfomycin
Generic Name
fosfomycin 3g
Category
Antibiotic
Route
Oral powder
Price Range
$21–$41 per single-dose sachet

Similar Medications

Other antibiotic medications available in Canada with pharmacy pricing:

Azithromycin azithromycin 250mg $8.55–$26.99 per course Cefixime cefixime 400mg $7.43–$32.89 per course Ceftriaxone ceftriaxone injection $27–$51 per dose Cephalexin cephalexin 500mg $12–$30 per course Ciprofloxacin ciprofloxacin 500mg $11–$28 per course Dalacin Cream clindamycin vaginal cream $47–$73 per tube Doxycycline doxycycline 100mg $11–$29 per course Macrobid nitrofurantoin 100mg $16–$35 per course

Frequently Asked Questions

How much does Fosfomycin cost in Canada?
Fosfomycin costs $21–$41 per single-dose sachet in Canada. Costco offers the lowest price at $20.49 per single-dose sachet.

Sources

Pharmacy prices were obtained through direct pharmacy inquiries for the listed package/unit, or for a standard 30-day supply when no package-specific unit is shown. Canadian pharmacies do not publish prescription drug prices online. Price ranges are rounded listed-basis estimates. Displayed pharmacy totals include dispensing fees; separate drug columns show the medication/package amount before the fee. Prices may vary by location, dosage, quantity, and supply. Provincial coverage data is sourced from each province's public formulary database. Coverage criteria and terminology differ between provinces.

Read the full pricing methodology and canonical sources.

  1. Costco PricingCostco Pharmacy Canada — price verified via pharmacy inquiryAccessed 2026-02-01
  2. Walmart PricingWalmart Pharmacy — price verified via pharmacy inquiryAccessed 2026-02-01
  3. Rexall PricingRexall Pharmacy — price verified via pharmacy inquiryAccessed 2026-02-01
  4. Shoppers PricingShoppers Drug Mart — price verified via pharmacy inquiryAccessed 2026-02-01
  5. ODB Formulary StatusOntario Drug Benefit Formulary — fosfomycin 3gAccessed 2026-01-15
  6. Drug Product InformationHealth Canada Drug Product Database — FosfomycinAccessed 2026-02-26

Last updated: 2026-02-26