Safely Buy Bactrim DS ( Sulfamethoxazole/Trimethoprim ) from Canada Prescriptions Plus.

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Formulation : Tablet
Drug Name Dosage Quantity Price Buy Now
Sulfamethoxazole/Trimethoprim 800/160mg 100 $48.70 Add To Cart
Dosage: 800/160mg
Quantity: 100
Price: $48.70


Bactrim DS is an antibacterial medication used to treat bacterial infections including urinary tract infections (UTIs), acute otitis media, acute exacerbations of chronic bronchitis, and traveler’s diarrhea.

This antibacterial medication combines sulfamethoxazole and trimethoprim to help fight bacteria that causes infections in the genitourinary, respiratory, and gastrointestinal tracts. Both drugs offer antimicrobial effects that kill and inhibit the spread of bacteria.

Uses and Dosage

The dose of Bactrim DS may vary depending on the individual and the severity of their infection being treated. When taking new medication, always follow your doctor’s instructions and read packaging labels carefully.

  • Swallow tablets whole with a full glass of water
  • Take with or without food at the same time each day
  • Most adults take 1 tablet every 12 hours
  • Take Bactrim DS for the entire length prescribed
  • Do not double dose
  • Drink lots of fluids to stay hydrated
  • Store at room temperature away from moisture and heat

Side Effects

Bactrim DS may cause some side effects to develop while it kills and suppresses bacteria. Speak with your doctor for more specific information regarding any symptoms you may encounter when taking sulfamethoxazole-trimethoprim.

Common Bactrim DS side effects:

  • Upset stomach, vomiting
  • Diarrhea
  • Decreased appetite

Serious Side Effects

Some more serious side effects may develop when taking Bactrim DS. Stop using this medication and contact your doctor if you notice any of the following symptoms:

  • High potassium (unusual heartbeat, change in clear thinking, feeling weak, dizziness, numbness or tingling, shortness of breath)
  • Low blood sugar (dizziness, headache, feeling sleepy, weakness, shaking, fast heartbeat, confusion, hunger, or sweating)
  • Kidney problems (trouble urinating, change in amount of urine passed, bloody urine)
  • Muscle or joint pain
  • Purple patches on skin or mouth
  • Shortness of breath
  • Hallucinations
  • Changes in mood
  • diarrhea

Allergic Reactions

Do not use Bactrim DS if you are allergic to sulfamethoxazole or trimethoprim. If you notice signs of an allergic reaction, stop taking this medication and contact your doctor right away.

Bactrim DS allergy symptoms may include:

  • Hives
  • Itching
  • Fever
  • Red, swollen, blistered, or peeling skin
  • Wheezing
  • Tightness in chest or throat
  • Trouble breathing, swallowing, or talking
  • Swelling of mouth, face, lips, tongue, or throat


Bactrim DS may cause your skin to burn more easily when exposed to the sun. Avoid direct sunlight exposure and do not use tanning beds while taking this antibacterial medication.

Avoid drinking alcohol while taking Bactrim DS because it can cause an increase in adverse effects. Any amount of alcohol can cause these side effects to occur.

This medication may increase your chance of developing a bad brain problem called aseptic meningitis. Contact your doctor immediately if you have a headache, fever, chills, very upset stomach, vomiting, stiff neck, rash, sensitivity to bright lights, sleepiness, confusion.

If you are using this medication and are 65 years old or older, you may be more likely to encounter adverse effects.

To ensure the safety of taking this antibacterial medication, tell your doctor if you have ever had any of the following:

  • Anemia caused by a lack of folic acid
  • Kidney or liver disease
  • Asthma, porphyria, thyroid disease
  • Low platelet count when using trimethoprim or a sulfa drug

Some medications may interact with this medication to cause unwanted side effects. Tell your doctor about all the medications you take, including over the counter medicine, vitamins, and herbal products, but especially any of the following:

  • A water pill
  • Heart or blood pressure medication

Do not give Bactrim DS to any child younger than 2 months old. Consult with your doctor before giving this antibiotic to a child.

Sulfamethoxazole and trimethoprim may cause harm to an unborn baby if taken while pregnant. Contact your doctor right away if yu are pregnant or get pregnant while using Bactrim DS.

Form and Strength

This antibacterial medication is available in tablet form.

Bactrim DS tablet strength:

  • 800/160mg

These Bactrim DS tablets containing 800mg of sulfamethoxazole and 160mg of trimethoprim are available in quantities of 100.


Can you drink alcohol when taking Bactrim DS?

No, you should avoid drinking alcohol while taking Bactrim DS. Alcohol can exacerbate adverse effects and cause new unwanted side effects to develop. Even small amounts may interact with the medication’s drugs to cause these unwanted symptoms.

What drugs should be avoided with a sulfa allergy?

Any sulfa drug should be avoided if you are allergic to that strain, unfortunately this includes Bactrim DS because it contains sulfamethoxazole. You should also avoid taking erythromycin-sulfisoxazole drugs like Pediazole. These antibiotic medications may cause most sulfa allergies, but they can be taken if you are allergic to other types of antibiotics such as penicillin.



Additional information

Brand Name:

Bactrim DS

Scientific Name:


Other Names:

Sulf Trimethroprim



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