Bactrim DS

Bactrim DS starts from €41.00. Several pack sizes are available — the larger the pack, the lower the per-unit price. European delivery is free on orders over €110, otherwise €20 standard (3–5 working days to most countries, 2–7 by country).

Orders ship in plain, unbranded packaging from our European fulfilment hub, usually within one working day of payment clearing. Standard delivery reaches all 27 EU + 3 EEA countries in 3–5 working days to most of them (2–7 depending on the country); express (1–2 working days) is also available. For EU orders, VAT and duties are settled at checkout via IOSS, so there are no surprise bills on arrival.

Bactrim DS contains two active ingredients: Sulfamethoxazole and Trimethoprim. Always read the patient information leaflet and consult a doctor or pharmacist before first use.

Choose your method at checkout: secure bank/SEPA transfer or PayPal. You'll receive clear payment confirmation by email, and we dispatch within one working day of payment clearing.

Yes. Every order ships in plain, unbranded outer packaging — nothing on the outside indicates the contents or the pharmacy.

DS stands for double strength. A Bactrim DS tablet contains 800mg sulfamethoxazole and 160mg trimethoprim — twice the amount in a regular-strength Bactrim tablet. This lets many adult regimens work with one tablet per dose instead of two. Confirm with a doctor that the DS strength matches the regimen intended for your infection.

Bactrim DS contains no penicillin, so a penicillin allergy alone does not rule it out; whether it suits you is your doctor's decision. It must not be taken if you are allergic to sulfonamide (sulfa) medicines. If you have any allergy history, mention it to a doctor or pharmacist before starting, and stop immediately if a rash develops.

Trimethoprim-sulfamethoxazole is a long-established treatment for uncomplicated urinary tract infections where local bacteria remain susceptible to it. Resistance rates vary by country, so it is not guaranteed to work everywhere. A doctor can judge whether it suits your case; if symptoms persist beyond two to three days of treatment, seek medical review.

Nausea, loss of appetite, and skin rash are the most frequently reported effects. Any rash deserves attention with sulfa antibiotics: stop the tablets and contact a doctor promptly, because rare but serious skin reactions can begin this way. Increased sun sensitivity is also common — read the full leaflet before your first dose.

Alcohol can add to nausea, dizziness and dehydration during treatment. The package leaflet covers alcohol; ask your doctor or pharmacist how it applies to you.

The package leaflet explains how to take Bactrim DS, including with food and fluids; drinking enough during the course matters because the sulfamethoxazole component can crystallise in concentrated urine. Follow the leaflet and your doctor's instructions.

If your symptoms have not started improving after two to three days of correct dosing, do not simply take more. The bacteria may be resistant to sulfamethoxazole-trimethoprim, or the diagnosis may need reviewing. See a doctor — they may switch you to a different antibiotic class rather than repeating the same course.

Trimethoprim has a half-life of roughly 8–10 hours and sulfamethoxazole about 10 hours in healthy adults, so most of a dose is cleared within two to three days of your last tablet. Clearance is slower if your kidneys are impaired, which is why doses are reduced in kidney disease.

Yes — every blister carries a printed expiry date, typically two to three years from manufacture. Do not use tablets past that date: potency declines and the medicine may not clear your infection, which encourages resistance. Dispose of expired antibiotics at a pharmacy rather than in household waste or down the sink.