BACTRIM DS (Sulfamethoxazole/Trimethoprim)
BACTRIM DS (Sulfamethoxazole/Trimethoprim)
Buy Bactrim DS brand or Sulfamethoxazole/Trimethoprim generic prescription drug from Canada


Why is Bactrim DS prescribed?
Sulfamethoxazole and Trimethoprim (Bactrim DS) is prescribed to treat infections of bacterial origin such as urinary tract infections, ear infections, bronchitis, pneumonia, and traveler’s diarrhea in adults.
What does it do?
Bacteria can multiply quickly and cause serious illnesses, which require immediate treatment. Bactrim DS is a combination of two drugs, Sulfamethoxazole and Trimethoprim, which belongs to a drug class called sulfonamides. It works by blocking the production of substances that are essential for bacteria to grow.
Antibiotics should only be used to treat infections of bacterial origin to prevent the incidence of drug-resistant bacteria and to maintain their efficacy.
How should I take it?
Bactrim DS and its generic equivalents are currently available in 800mg/160mg tablets. Each tablet should be taken as a whole (do not split) by mouth with food as it may cause stomach upset.
The dosage strength depends on every patient’s condition and the doctor’s prescription. It is imperative that you do not self-medicate and only take this drug after consulting with your doctor or pharmacist to determine the best dosage and dosing schedule for the treatment of your condition.
What if I missed a dose?
The desired effects of prescribed medications will only be achieved if taken properly. As much as possible, strictly follow your doctor’s prescribed dosing schedule. However, if you miss a dose, take it immediately and adjust the time of your next dose depending on your doctor’s advice. Never take two doses at the same time just to make up for your missed dose.
What are the special precautions before using Bactrim DS?
Inform your doctor about all the medications you are taking, your current and previous medical history, and any allergic reactions to Bactrim DS or any other ingredients included in the manufacture of this medication.
Taking Bactrim DS can cause the formation of crystals and stones in the urine. Increasing your water intake can prevent this from happening.
Taking Bactrim DS may cause your skin to be more sensitive to sunlight. Avoid exposing yourself to excessive amounts of sunlight and wear protective clothing, sunscreen, and use sunglasses when going outdoors.
For the drug label information of Bactrim DS, click here.
Does it have any side effects?
It is important to note that all drugs have corresponding side effects and adverse reactions. Additional information may be obtained when you ask your doctor or pharmacist.
- Common side effects include:
- Appetite loss
- Diarrhea
- Fatigue
- Flatulence
- Nausea
- Rashes
- Ringing in your ears
- Vomiting
- Serious side effects include:
- Balance problems
- Blood in urine
- Confusion
- Difficulty breathing
- Dizziness
- Hallucinations
- Headache
- Irregular heartbeat
- Lightheadedness
- Muscle pain
- Shortness of breath
- Skin discoloration
- Sore throat
- Weight changes
Is it safe to use it with another drug?
Some drug interactions may cause life-threatening reactions when taken with other medications. Immediately inform your doctor if you are taking Bactrim DS with any of the following medications:
- Aceon
- Aldactone
- Altace
- Amiloride
- Aminolevulinic acid
- Atacand
- Avapro
- Benicar
- Captopril
- Clozapine
- Coumadin
- Cozaar
- Dicumarol
- Diovan
- Dofetilide
- Dyrenium
- Enalapril
- Eplerenone
- Eprosartan
- Fosinopril
- Hiprex
- K-dur
- Leucovorin
- Lomitapide
- Lotensin
- Micardis
- Mipomersen
- Prilocaine
- Quinapril
- Restasis
- Rheumatrex
- Trandolapril
- Univasc
- Zestril
Ask your doctor or pharmacist for other possible interactions not listed within this section.
How should I store it?
Store Bactrim DS in a tight container in a clean environment away from excessive heat and moisture. Keep out of reach of children.
What action should I take in case of overdose?
Immediately call an ambulance and seek immediate medical attention to prevent further complications or possible death.
Is it safe for pregnant or breastfeeding women?
Present data suggest that the use of Bactrim DS in pregnant women has not established its developmental risks.
Data shows that Bactrim DS is excreted in human milk and may cause harmful effects to the breastfed infant. Hence, the potential risks and benefits of using Bactrim DS in pregnant or breastfeeding women should be carefully considered.
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