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Trimethoprim is an antibiotic commonly prescribed in tablet form to help treat urinary tract infections, including cystitis, particularly in women.
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Trimethoprim tablets are an antibiotic used to treat bacterial infections, most commonly UTIs and bladder infections (cystitis). They can help relieve typical UTI symptoms such as a burning sensation when urinating, a frequent or urgent need to pass urine, and lower abdominal discomfort.
Trimethoprim targets the bacteria causing the infection by stopping them from multiplying. This gives your immune system the chance to clear the remaining bacteria, allowing symptoms to ease and eventually resolve.
Usually taken once or twice daily depending on the infection and severity. For mild or uncomplicated cystitis, a typical course involves one dose every 12 hours for around three days. Always finish the full prescribed course even if symptoms improve quickly.
Taking certain medicines including methotrexate, phenytoin, or diuretics
These are usually mild and settle as your body adjusts. If any side effects become severe, speak to a healthcare professional.
| Note: In parts of the UK, resistance to trimethoprim has increased, meaning it may not be effective for everyone. Alternative antibiotics such as nitrofurantoin are often used as well. |
Q: What is Trimethoprim used for?
A: Trimethoprim is mainly used to treat UTIs and bladder infections (cystitis), particularly in women.
Q: How long do I take Trimethoprim?
A: Typically one dose every 12 hours for around three days for uncomplicated cystitis, though this can vary.
Q: Is Trimethoprim the same as Nitrofurantoin?
A: No. Both treat UTIs but work differently. Due to increasing resistance, nitrofurantoin is often now preferred as a first-line treatment.
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