How was your experience with Sulfamethoxazole?

First, a little about yourself

Tell us about yourself in a few words?

What tips would you provide a friend before taking Sulfamethoxazole?

What are you taking Sulfamethoxazole for?

Choose one
  • Other
  • Bacterial Infections
  • Bronchitis
  • Chlamydiaceae Infections
  • Enterobacteriaceae Infections
  • Mycoses
  • Nocardia Infections
  • Otitis Media
  • Protozoan Infections
  • Toxoplasmosis
  • Urinary Tract Infections

How long have you been taking it?

Choose one
  • Less than a week
  • A couple weeks
  • A month or so
  • A few months
  • A year or so
  • Two years or more

How well did Sulfamethoxazole work for you?

Did you experience many side effects while taking this drug?

How likely would you be to recommend Sulfamethoxazole to a friend?

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Uses of Sulfamethoxazole


Sulfamethoxazole is used in the treatment of:

  • Bronchitis
  • Chlamydiaceae Infections
  • Enterobacteriaceae Infections
  • Nocardia Infections
  • Otitis Media
  • Toxoplasmosis
  • Urinary Tract Infections

This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.

Sulfamethoxazole Brand Names

Sulfamethoxazole may be found in some form under the following brand names:

Sulfamethoxazole Drug Class

Sulfamethoxazole is part of the drug class:

Sulfamethoxazole Interactions

Tell your doctor about all the medicines you take including prescription and non-prescription medicines, vitamins, and herbal supplements. Especially tell your doctor if you take:


This is not a complete list of Sulfamethoxazoledrug interactions. Ask your doctor or pharmacist for more information.

Sulfamethoxazole and Pregnancy

Tell your doctor if you are pregnant or plan to become pregnant.

The FDA categorizes medications based on safety for use during pregnancy. Five categories - A, B, C, D, and X, are used to classify the possible risks to an unborn baby when a medication is taken during pregnancy.

Sulfamethoxazole falls into category C:

In animal studies, pregnant animals were given this medication and had some babies born with problems. No well-controlled studies have been done in humans, though. Therefore, this medication may be used if the potential benefits to the mother outweigh the potential risks to the unborn child.


There are no well-controlled studies that have been done in pregnant women. Sulfamethoxazole should be used during pregnancy only if the possible benefit outweighs the possible risk to the unborn baby.


No studies have been done in animals, and no well-controlled studies have been done in pregnant women. Sulfamethoxazole should be given to a pregnant woman only if clearly needed.

Sulfamethoxazole Dosage

Take sulfamethoxazole exactly as prescribed by your doctor. Follow the directions on your prescription label carefully.

The Sulfamethoxazole dose your doctor recommends will be based on the following (use any or all that apply):

  • the condition being treated
  • other medical conditions you have
  • other medications you are taking
  • how you respond to this medication
  • your weight
  • your height
  • your age
  • your gender

Sulfamethoxazole is available in the following doses:

  • Phenazopyridine-sulfamethoxazole 100 Mg-500 Mg Oral Tablet
  • Sulfamethoxazole 500 Mg Oral Tablet
  • Sulfamethoxazole Compounding Powder
  • Sulfamethoxazole-trimethoprim 200 Mg-40 Mg/5 Ml Oral Suspension
  • Sulfamethoxazole-trimethoprim 400 Mg-80 Mg Oral Tablet
  • Sulfamethoxazole-trimethoprim 80 Mg-16 Mg/ml Intravenous Solution
  • Sulfamethoxazole-trimethoprim 800 Mg-160 Mg Oral Tablet

Forms of Medication

Sulfamethoxazole is available in the following forms:

  • Injectable Solution
  • Oral Suspension
  • Oral Tablet

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