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.

Lowest price near you
  • Price before coupon
    $11.13
  • Lowest price with coupon
    $6.28
  • Savings
    44%
Quick facts about Bactrim
  • Drug class: Infection
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (sulfamethoxazole / trimethoprim)

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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What to expect from Bactrim, on one page

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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?

Prices and coupons

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

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  • First few hoursHours
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  • Effectiveness
  • Starts to kick in
    Full effects
  • First few hoursHours
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  • Possible side effects
  • Diarrhea
  • Nausea
  • Loss of appetite
  • Rash
  • Serious allergic reaction
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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.

Pharmacist Q&A

Bactrim (sulfamethoxazole / trimethoprim) questions for

Frequently Asked Questions

This medication treats acute exacerbations of chronic bronchitis.

Who is this drug for?

This medication treats acute exacerbations of chronic bronchitis.

Common concerns from people taking Bactrim (sulfamethoxazole / trimethoprim)

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Pregnancy

Research studies with real people found harmful effects on unborn babies, but the benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

Tip: Always talk with your doctor before you take any medication while pregnant.
FDA pregnancy category for Bactrim
DWeigh risks vs. benefits
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
  • Not worth it
    Big hassle
    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