What is Sulfamethoxazole-Trimethoprim: Uses, Warnings & Interactions

Your doctor will tell you how much medicine to use. Do not use more than directed.

Oral liquid: Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.

Take all of the medicine in your prescription to clear up your infection, even if you feel better after the first few doses.

Drink extra fluids so you will urinate more often and help prevent kidney problems.

Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Do not freeze the oral liquid.

Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.

Oral liquid: Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.

Drink extra fluids so you will urinate more often and help prevent kidney problems.

Your doctor will tell you how much medicine to use. Do not use more than directed.

Take all of the medicine in your prescription to clear up your infection, even if you feel better after the first few doses.

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Do not freeze the oral liquid.

This medicine is not right for everyone. Do not use it if you had an allergic reaction to trimethoprim, sulfamethoxazole, or any sulfa drug. Do not use this medicine if you are pregnant, if you have kidney disease, liver disease, anemia caused by low levels of folic acid, or if you have a history of drug-induced thrombocytopenia.

It is not safe to take this medicine during pregnancy. It could harm an unborn baby. Tell your doctor right away if you become pregnant.

Tell your doctor if you are breastfeeding, or if you have diabetes, malabsorption or malnutrition, folate deficiency, G6PD deficiency, porphyria, thyroid problems, or a history of alcoholism. Tell your doctor if you have asthma or severe allergies, especially if you are allergic to any medicines. It is important for your doctor to know if you have HIV or AIDS, because this medicine might work differently for you.

This medicine may cause the following problems: Serious skin reactions, including Stevens-Johnson syndrome, toxic epidermal necrolysis, drug reaction with eosinophilia and systemic symptoms (DRESS), acute generalized exanthematous pustulosis (AGEP), or acute febrile neutrophilic dermatosis (AFND)Liver problemsHypoglycemia (low blood sugar)

This medicine lowers the number of certain blood cells, so you may bleed or bruise more easily. Be careful to avoid injuries.

Keep all medicine out of the reach of children. Never share your medicine with anyone.

Sore throat, fever, muscle pain

This medicine can cause diarrhea. Call your doctor if the diarrhea becomes severe, does not stop, or is bloody. Do not take any medicine to stop diarrhea until you have talked to your doctor. Diarrhea can occur 2 months or more after you stop taking this medicine.

Tell any doctor or dentist who treats you that you are using this medicine. This medicine may affect certain medical test results.

Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.

Uneven heartbeat, numbness or tingling in your hands, feet, or lips

Unusual bleeding, bruising, or weakness

Do not use this medicine if you are also using dofetilide. Do not use this medicine for Pneumocystis jiroveci pneumonia (PCP) if you are also using leucovorin.

Some medicines can affect how this medicine works. Tell your doctor if you also use the following: Amantadine, cyclosporine, digoxin, indomethacin, memantine, methotrexate, phenytoin, procainamide, pyrimethamine, warfarin, zidovudineBlood pressure medicine (including an ACE inhibitor)Diabetes medicine (including glipizide, glyburide, metformin, pioglitazone, repaglinide, rosiglitazone)Diuretic (water pill, including hydrochlorothiazide)Medicine to treat depression (including TCAs)

This medicine may cause a severe allergic reaction.

This medicine may lower the number of platelets in your body, which are necessary for proper blood clotting. This may cause you to bleed or get infections more easily. Talk with your doctor if you have concerns about this.

This medicine can cause diarrhea. Call your doctor if the diarrhea becomes severe, does not stop, or is bloody. Do not take any medicine to stop diarrhea until you have talked to your doctor. Diarrhea can occur 2 months or more after you stop taking this medicine.

Tell any doctor or dentist who treats you that you are using this medicine. This medicine may affect certain medical test results.

Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.

Keep all medicine out of the reach of children. Never share your medicine with anyone.