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    You are here: Home > Pharmacy > S > Sulfamethoxazole–Trimethoprim
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    What is Sulfamethoxazole–Trimethoprim used for?

    Sulfamethoxazole–Trimethoprim is used to treat a wide variety of bacterial infections such as ear infections, urinary tract infections, traveler's diarrhea, bronchitis, and pneumocystis carinii pneumonia. This antibacterial combination medication helps stop the growth of the bacteria that causes the infection. This medicine may also be used to treat other conditions as determined by your doctor.

    What is the recommended dosage of Sulfamethoxazole–Trimethoprim?

    The dosage of Sulfamethoxazole–Trimethoprim prescribed to each patient will vary. Always follow your physician’s instructions and/or the directions on the prescription drug label. This medicine should be swallowed whole with a glass of water.

    What if you miss a dose of Sulfamethoxazole–Trimethoprim?

    If your physician has instructed or directed you to take Sulfamethoxazole–Trimethoprim medication in a regular schedule and you have missed a dose of this medicine, take it as soon as you remember. However, if it is almost time for your next dose, then skip the missed dose and go back to your regular dosing schedule. Do not double the doses unless otherwise directed.

    What if you overdose on Sulfamethoxazole–Trimethoprim?

    Any medication taken in excess can have serious consequences. If you suspect an overdose of Sulfamethoxazole–Trimethoprim, seek medical attention immediately. Some of the overdose symptoms of this drug are loss of appetite, dizziness, drowsiness, nausea, vomiting, stomach pain, headache, diarrhea, and fever.

    What other drugs could interact with Sulfamethoxazole–Trimethoprim?

    It may be noted that drugs other than those listed above may also interact with Sulfamethoxazole–Trimethoprim.

    Usually drug interactions occur when it is taken with another drug or with food. Before you take a medication for a particular ailment, you should inform the health expert about intake of any other medications including non-prescription medications, over-the-counter medicines that may increase the effect of Sulfamethoxazole–Trimethoprim, and dietary supplements like vitamins, minerals and herbal, so that the doctor can warn you of any possible drug interactions.

    Sulfamethoxazole–Trimethoprim can interact with certain anti-diabetic medications, blood thinners, ACE inhibitors, live vaccines, tricyclic antidepressants, diuretics, and oral contraceptive pills.

    Do let your doctor know if you smoke, consume alcohol or caffeinated drinks, or use illegal drugs as these may interfere with the action of your medication. Make sure to inform your doctor of any medical conditions you may have, or any family history of medical problems. Do not start or stop using any medicine without consulting your doctor.

    What are the side effects of Sulfamethoxazole–Trimethoprim?

    Like other medicines, Sulfamethoxazole–Trimethoprim can cause some side effects. If they do occur, the side effects of Sulfamethoxazole–Trimethoprim are most likely to be minor and temporary. However, some may be serious and may require the individual to inform the doctor or visit the nearest hospital immediately.

    It is pertinent to note that side effects of Sulfamethoxazole–Trimethoprim cannot be anticipated. If any side effects of Sulfamethoxazole–Trimethoprim develop or change in intensity, the doctor should be informed as soon as possible.

    Sulfamethoxazole–Trimethoprim can cause side effects such as dizziness, insomnia, nausea, vomiting, diarrhea, loss of appetite, and headache. This is not a complete list of all side effects. Do concur with your doctor and follow his directions completely when you are taking Sulfamethoxazole–Trimethoprim.

    What are the questions to ask your doctor before taking Sulfamethoxazole–Trimethoprim?

    Is it possible for me to take Sulfamethoxazole–Trimethoprim with other drugs?
    Should certain beverages, foods and other products be avoided when I take Sulfamethoxazole–Trimethoprim?
    What are the possible drug interactions of Sulfamethoxazole–Trimethoprim?
    How will Sulfamethoxazole–Trimethoprim work in my body?
    How should Sulfamethoxazole–Trimethoprim be taken?
    How to reduce the risk of Sulfamethoxazole–Trimethoprim drug interactions and side effects?


    The health and medical information provided here is intended to supplement and not substitute for the expertise and judgment of your physician, pharmacists or other health care professional. Before taking Sulfamethoxazole–Trimethoprim, tell your doctor if you have asthma, kidney or liver disease, folic acid deficiency, AIDS, and diabetes. Let your healthcare provider know if you are pregnant or planning to become pregnant. Breast-feeding is not recommended while using this drug. Avoid prolonged exposure to sun.


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