Trimethoprim is antibiotic that is used mainly in the treatment of chest and urinary tract bacterial infections. It is sometimes used to prevent infections from occurring.
Trimethoprim is used to treat bacterial infections, particularly of the chest and the urinary tract: most urinary tract infections are caused by bacteria from the patient’s own bowel. These infections can be treated easily with a short course of Trimethoprim. Sometimes a longer course will be needed to prevent the infection from coming back.
You should let your doctor or your pharmacist know if you:
Before you start taking Trimethoprim it is important that you read the printed information leaflet inside the packet.
Take Trimethoprim as your doctor advises you. Your doctor or your pharmacist will tell you the dose you should be taking and when you should be taking it. This information should also be on packet itself. Space out doses throughout the day.
It is fine to take Trimethoprim before or after food.
It is vital that you complete your whole course of Trimethoprim, even if you feel that the infection has cleared up. This will prevent the infection from coming back.
A course of Trimethoprim usually lasts no longer than two weeks. If, after this time, you still feel unwell, contact your doctor.
If you forget to take a dose, take one as soon as you remember, but do not take two doses at the same time.
Like most medicines, Trimethoprim can cause side effects. These normally improve as your body gets used to the medicine. If you have persistent side effects you should talk to either your doctor or your pharmacist.
Common side effects include nausea, vomiting, diarrhea and skin rashes.
If you develop an itchy rash, a swollen face or mouth or have any difficulty breathing, this may be a sign that you are allergic to Trimethoprim. If any of these symptoms occur, stop taking the medication and contact your doctor or your pharmacist, or in the case of an emergency go to the A&E department of your local hospital.
Keep Trimethoprim out of the reach of children and store it in a dry and cool place away from direct heat and light.