Sulfatrim (Trimethoprim / Sulfamethoxazole)

What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.

Coming Soon – Save up to 85%

Sign up to get exclusive coupon discounts and be the first to be notified when we have this product available.

Prescription Required

  • Product Details


    Sulfatrim is an antimicrobial that can be obtained with a valid prescription. It is used to treat certain infections, including:

    • Urinary tract infections
    • Upper and lower respiratory tract infections
    • Gastrointestinal tract infections

    Sulfatrim comes in tablets for oral use that contain 400 mg of sulfamethoxazole USP and 80 mg of trimethoprim USP. Sulfatrim pediatric suspension for pediatric patients is also available for oral administration.


    Sulfatrim should be taken as directed by your doctor. Talk to your doctor or pharmacist about any questions or concerns you may have.

    Dosing of sulfatrim depends on the type of infection, age, and weight.

    Your doctor will tell you how much sulfatrim you should take and for how long.

    Patients with kidney problems may need a lower dose.


    Sulfatrim tablets contain sulfamethoxazole and trimethoprim. They also contain inactive ingredients, including colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, and methylcellulose.


    Do not take sulfatrim if you are allergic to the medication or to any of its ingredients.

    Do not take sulfatrim if you have ever had immune thrombocytopenia (low platelet counts) due to a drug.

    Do not take sulfatrim with trimethoprim and/or sulfonamides.

    Do not take sulfatrim if you have megaloblastic anemia due to a deficiency in folate.

    Dot take sulfatrim if you have severe kidney problems.

    Do not take sulfatrim if you are pregnant or breastfeeding.

    Do not administer sulfatrim to premature babies and infants younger than 2 months old.

    Do not take sulfatrim if you have acute porphyria.


    • Before you start taking sulfatrim, inform your doctor of:
      • All the prescription and over-the-counter medications you take
      • Your allergies
      • Your medical history and current health problems
      • Your pregnancy or breastfeeding status
    • Do not use sulfatrim to treat streptococcal pharyngitis.
    • Severe (and potentially life-threatening) skin reactions can occur with sulfatrim use. Seek medical care right away if you have a flat red rash; blisters;skin peeling; fever; body aches; blisters/sores/ulcers on your mouth, nose, or genitals; and inflamed and swollen eyes.
    • A liver disease called fulminant hepatic necrosis can occur with sulfatrim, leading to symptoms such as yellowing of the skin or whites of the eyes; pain in the upper right abdomen, abdominal swelling, nausea, and vomiting. Seek medical care right away if you develop any of these symptoms.
    • Low white blood cell counts can occur with sulfatrim use, leading to fever, chills, sore throat, feeling weak, rapid heart rate, and fast breathing. Seek medical care immediately if you have any of these symptoms.
    • Aplastic anemia can occur with sulfatrim use, leading to feeling tired, short of breath, pale skin, easy bruising, fever, chills, sore throat, and a general feeling of discomfort. Seek medical care right away if you develop any of these symptoms.
    • Sulfatrim can cause immune thrombocytopenia, leading to easy bruising, rash, bleeding of the gums or nose, and blood in the urine or stool. Seek medical care right away if you develop any of these symptoms.
    • An allergic reaction in the lungs and airways can occur with sulfatrim use, which can cause breathing problems. Coughing, wheezing, and chest tightness. Seek medical care right away if you develop any of these effects.
    • Caution should be used when driving or operating machinery.
    • Clostridium difficile-associated diarrhea can occur with sulfatrim use.

    Side Effects

    High potassium levels, anorexia, fungal overgrowth, headache, nausea, vomiting, diarrhea, and allergic skin reactions are the most common sulfatrim side effects; however, other side effects may also occur. Contact your doctor right away if you have bothersome or persistent side effects.


    Sulfatrim. Vaughan, Ontario: AA Pharma Inc.; 2021.

    IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.

    Product Code : 13749

  • Product Reviews


Please wait while the page is loading. Do not hit refresh or the browser back button to avoid any loss of information.

If you have any questions or concerns, please contact our Customer Service team via the chat option on our website or calling us toll free at: 1-800-891-0844