Sulfamethoxazole/Trimethoprim (By mouth)
Treats or prevents infections.
Antibiotic, Sulfonamide Combination (About this – PubMed Health)
Uses of This Medicine
Sulfamethoxazole and trimethoprim combination is used to treat infections such as urinary tract infections, middle ear infections (otitis media), bronchitis, traveler’s diarrhea, and shigellosis (bacillary dysentery). This medicine is also used to prevent or treat Pneumocystis jiroveci pneumonia or Pneumocystis carinii pneumonia (PCP), a very serious kind of pneumonia. This type of pneumonia occurs more commonly in patients whose immune systems are not working normally, such as cancer patients, transplant patients, and patients with acquired immune deficiency syndrome (AIDS).
Sulfamethoxazole and trimethoprim combination is an antibiotic. It works by eliminating the bacteria that cause many kinds of infections. This medicine will not work for colds, flu, or other virus infections.
This medicine is available only with your doctor’s prescription.
Other uses (PubMed Health)
How To Use
Your doctor will tell you how much medicine to use. Do not use more than directed.
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.
Take all of the medicine in your prescription to clear up your infection, even if you feel better after the first few doses.
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.
Drugs and Foods to Avoid
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
Some medicines can affect how this medicine works. Tell your doctor if you also use the following:amantadine, cyclosporine, digoxin, indomethacin, memantine, methotrexate, phenytoin, pyrimethamine, or warfarin an ACE inhibitor, diabetes medicine (glipizide, glyburide, metformin, pioglitazone, repaglinide, rosiglitazone), a diuretic (water pill, such as hydrochlorothiazide), or a tricyclic antidepressant
When Not To Use
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 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 kidney disease, liver disease, diabetes, malabsorption or malnutrition, folate 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 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.
Possible side effects
Summary More details
Call your doctor right away if you notice any of these side effects:
Chest pain, cough, or trouble breathing
Severe diarrhea, stomach pain, cramps, bloating
Skin rash, purple spots on your skin, or very pale or yellow skin
Uneven heartbeat, numbness or tingling in your hands, feet, or lips
Unusual bleeding, bruising, or weakness
If you notice these less serious side effects, talk with your doctor:
Mild nausea, vomiting, or loss of appetite
If you notice other side effects that you think are caused by this medicine, tell your doctor.
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
More side effects of this drug
Brand names include
Apo-Sulfatrim, Bactrim, Bactrim DS, Novo-Trimel, Nu-Cotrimox, SMZ-TMP Pediatric, Septa Pediatric, Septra, Septra DS, Septra Pediatric Suspension, Sulfatrim, Sulfatrim Pediatric
There may be other brand names for this medicine.