Bactrim

(sulfamethoxazole / trimethoprim)

3.6/ 5 average rating with 473 reviewsforBactrim
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Kills bacteria.

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Our bottom line

Bactrim (sulfamethoxazole / trimethoprim) is good for treating many bacterial infections and is available as a generic. However, you can be more likely to sunburn.

Quick facts about Bactrim
  • Drug class: Infection
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (sulfamethoxazole / trimethoprim)
Prices and discounts
Lowest price for 20 800mg-160mg tablets
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$4.00

Upsides

  • Widely available as a generic product and in a variety of formulations (tablet, capsule, suspension).
  • Works well to treat many types of bacterial infections

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What to expect from Bactrim, on one page

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People’s experience with Bactrim

473reviews so far. What do you think?

Downsides

  • Makes you sensitive to the sun.
  • Can upset your stomach
  • Drink plenty of water or fluids to avoid harming your kidneys
  • May cause birth defects

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Get our free fact sheet

What to expect from Bactrim, on one page

Download Fact Sheet
Prices and discounts
Lowest price for 20 800mg-160mg tablets
Determining your location...
$4.00
How it works

Bactrim (sulfamethoxazole / trimethoprim) is a combination antibiotic that contains sulfamethoxazole and trimethoprim. It kills bacteria.

Quick facts about Bactrim
  • Drug class: Infection
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (sulfamethoxazole / trimethoprim)

Dosage forms

  • Pill
  • Liquid
People’s experience with Bactrim

473reviews so far. What do you think?

What to expect when you take Bactrim (sulfamethoxazole / trimethoprim) for Infection

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Side effect rates for Bactrim (sulfamethoxazole / trimethoprim)

Risks and Warnings for Bactrim (sulfamethoxazole / trimethoprim)

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  • Like all antibiotics, Bactrim (sulfamethoxazole / trimethoprim) can cause diarrhea. Taking probiotic supplements a few hours after taking Bactrim (sulfamethoxazole / trimethoprim) may help with the diarrhea. If diarrhea worsens or becomes bloody, talk to your doctor right away.

Common concerns from people taking Bactrim (sulfamethoxazole / trimethoprim)

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Pregnancy
Kidneys and liver
  • Bactrim (sulfamethoxazole / trimethoprim) can harm your kidneys, especially if you're taking anti-inflammatory pain relievers like Motrin or Advil or other medicines that also affect your kidneys. Make sure to drink plenty of water or fluids while you're taking Bactrim (sulfamethoxazole / trimethoprim).
Pain
  • Reviewed Bactrimon 10/13/2016UTI pain gone in 1 day but severe GI symptoms & accelerated heart rate started w/i 24 hrs of 1st dose.
    38
    Woman
    Urinary tract infection