How much does Sulfamethoxazole/Trimethoprim cost without insurance?

As of the latest check, the lowest verified cash price we've found for Sulfamethoxazole/Trimethoprim is $4.00 at Costco Pharmacy, across 1 verified source. Cash prices are unregulated and vary by pharmacy, so compare before you fill and confirm the price at the counter.

Is there a generic for Sulfamethoxazole/Trimethoprim?

Yes. Sulfamethoxazole/Trimethoprim is the generic; it is also sold under brand names such as Bactrim DS. The generic is typically far cheaper than brand and is what our verified cash prices reflect.

Why does the price of Sulfamethoxazole/Trimethoprim vary so much between pharmacies?

U.S. cash prescription prices are unregulated, each pharmacy sets its own markup, and discount programs and mail-order sources widen the spread further (this is common across the Antibiotic class). That's why comparing verified prices before you fill can save money.

AntibioticGeneric available

Sulfamethoxazole/Trimethoprim

Sold as Bactrim DS

Sulfamethoxazole/Trimethoprim (sold as Bactrim DS) is used for: UTI, MRSA skin infections.

Compare prices →~$8.20 / mo (generic, NADAC)

As of August 2026, Sulfamethoxazole/Trimethoprim (800/160 mg) cash prices on BetterBuyRx start at $4.00 across 1 verified source (lowest at Costco Pharmacy). The free BetterBuyRx discount card is compared live on the drug page when a partner network prices this combo. Prices change; confirm at the counter.

Live price snapshot

Source	Type	Cash price
Costco Pharmacy	pharmacy	$4.00

See all prices for Sulfamethoxazole/Trimethoprim →Prices checked Aug 23, 2026

Save with the free BetterBuyRx card

The BetterBuyRx discount card is free, no signup, no insurance needed. When a partner network prices Sulfamethoxazole/Trimethoprim, the card price appears live on the drug page with its BIN, PCN, Group, and Member ID. Show the card at the pharmacy counter; it can't be combined with insurance.

Get the free card →Sulfamethoxazole/Trimethoprim coupon & card price →

Frequently asked questions

How much does Sulfamethoxazole/Trimethoprim cost without insurance?: As of the latest check, the lowest verified cash price we've found for Sulfamethoxazole/Trimethoprim is $4.00 at Costco Pharmacy, across 1 verified source. Cash prices are unregulated and vary by pharmacy, so compare before you fill and confirm the price at the counter.
Is there a generic for Sulfamethoxazole/Trimethoprim?: Yes. Sulfamethoxazole/Trimethoprim is the generic; it is also sold under brand names such as Bactrim DS. The generic is typically far cheaper than brand and is what our verified cash prices reflect.
Can I use the free BetterBuyRx discount card for Sulfamethoxazole/Trimethoprim?: Yes. The free BetterBuyRx discount card is compared live on the drug page and, when a partner network prices Sulfamethoxazole/Trimethoprim, shows the card price with its BIN, PCN, Group, and Member ID. It can't be combined with insurance.
Why does the price of Sulfamethoxazole/Trimethoprim vary so much between pharmacies?: U.S. cash prescription prices are unregulated, each pharmacy sets its own markup, and discount programs and mail-order sources widen the spread further (this is common across the Antibiotic class). That's why comparing verified prices before you fill can save money.

We're still expanding this entry. For full prescribing information, see the FDA label below.

Clinical content reviewed by the BetterBuyRx clinical team.

Educational only. Not medical advice. Always confirm with your prescriber or pharmacist.