Product introduction
Bactrim DS is a combination antibiotic containing sulfamethoxazole and trimethoprim (co-trimoxazole). It is used to treat a range of bacterial infections, including those of the urinary tract, lungs, throat, ears and abdomen, by stopping the growth of the bacteria causing the infection. It should be taken exactly as prescribed, and the full course must be completed even if you start to feel better, to make sure the infection clears fully and to reduce the risk of resistance.
Storage: Store below 30°C, in a cool and dry place away from direct sunlight. Keep the tablets in the original container, tightly closed.
Uses of Bactrim DS Tablet
- Treatment of bacterial infections
- Urinary tract infections
- Respiratory infections such as pneumonia and bronchitis
- Ear infections and certain abdominal infections
Benefits of Bactrim DS Tablet
This medicine pairs two antibiotics that work together to tackle bacterial infections more effectively than either would alone. It is used for infections of the urinary tract, respiratory system, ears and abdomen, halting the growth and multiplication of the bacteria responsible so the body can clear the infection. Taking it regularly and finishing the prescribed course gives the best chance of a complete recovery.
Side effects of Bactrim DS Tablet
Most side effects do not require medical attention and go away as your body adjusts. Consult your doctor if they persist.
- Nausea
- Vomiting
- Decreased appetite
- Headache
- Rash and itching
- Diarrhoea
- Raised potassium levels
- Candida (fungal) overgrowth
How to use Bactrim DS Tablet
Swallow the tablet whole with water; do not chew, crush or break it. It is best taken with or after food to reduce stomach upset. Take it at the same times each day and complete the full course your doctor prescribes.
How Bactrim DS Tablet works
Bactrim DS combines two antibiotics, sulfamethoxazole and trimethoprim. Both interfere with the ability of bacteria to make folic acid, a nutrient they need to grow and multiply. By blocking two steps in this process, the combination stops the bacteria from reproducing and helps clear the infection.
Substitutes for Bactrim DS Tablet
No other medicine with the same composition is listed in our catalogue yet. Message us on WhatsApp and our pharmacist will help you find a suitable alternative.
Safety advice
It is not known whether it is safe to drink alcohol while taking Bactrim DS. Consult your doctor.
Bactrim DS is generally not recommended during pregnancy, as animal studies suggest a risk to the developing baby. Use it only if your doctor considers it necessary.
Available data suggest the medicine does not pass into breast milk in significant amounts, so it is generally considered safe when prescribed. Follow your doctor's advice.
It is not known whether Bactrim DS affects your ability to drive. Consult your doctor if you feel unwell.
Use with caution if you have kidney disease. A dose adjustment may be needed, so tell your doctor about any kidney problems.
Use with caution if you have liver disease. A dose adjustment may be needed, so tell your doctor about any liver problems.
Quick tips
- Complete the full course even if you feel better, or the infection may return.
- Take it with food, milk or an antacid if it upsets your stomach; avoid fatty or fried foods.
- Mild diarrhoea can occur; it usually settles after the course is finished. Tell your doctor if it becomes severe.
- Report any skin rash or blistering to your doctor straight away.
- If you are on it long term, your doctor may order regular blood tests.
Fact box
| Chemical class | — |
|---|---|
| Habit forming | No |
| Therapeutic class | Anti-infectives |
| Action class | Sulfonamides and combinations (folate antagonists) |
Frequently asked questions
What is Bactrim DS?
It is a combination antibiotic containing sulfamethoxazole and trimethoprim, used to treat a variety of bacterial infections.
Can I stop taking it once I feel better?
No. You should finish the entire course your doctor prescribes, even if you feel better, so the infection is fully cleared and does not come back.
How can I reduce nausea or vomiting from it?
Taking the tablet with milk, food or an antacid can help, and it is best to avoid fatty or fried foods. Tell your doctor if the sickness is severe.
Does it work against viral infections like the common cold?
No. It is an antibiotic and only works against bacterial infections. It will not help with colds, flu or other viral illnesses.
How should I store it?
Keep it in its original, tightly closed container, stored below 30°C away from heat and direct sunlight, and out of reach of children.