Trimethoprim is a synthetic antibacterial agent used to treat various bacterial infections. It works by inhibiting bacterial DNA synthesis, effectively targeting Gram-positive and some Gram-negative bacteria. Often combined with sulfamethoxazole, it is commonly prescribed for urinary tract infections, respiratory infections, and skin infections.

Bactrim

Antivirals / Antibiotics

400/80|800/160mg

Trimethoprim FAQ


What is Trimethoprim used for?

Primarily treats bacterial infections such as UTIs, respiratory, and skin infections.

How does Trimethoprim work?

Inhibits bacterial DNA synthesis by blocking folate production, essential for bacterial growth.

Is Trimethoprim available over-the-counter in Malaysia?

No, it typically requires a prescription from a healthcare provider.

What are common side effects of Trimethoprim?

Nausea, vomiting, diarrhea, and skin rash; severe reactions are rare but possible.

Can I take Trimethoprim during pregnancy?

Use with caution; consult your doctor to weigh benefits against potential risks.

How long does a typical course of Trimethoprim last?

Usually 5-7 days, depending on the infection type and severity.

Does Trimethoprim treat viral infections?

No, it is ineffective against viruses; misuse can lead to antibiotic resistance.

Can Trimethoprim cause allergic reactions?

Yes, though rare; monitor for signs like rash, itching, or difficulty breathing.

How should Trimethoprim be stored?

Keep in a cool, dry place, out of direct sunlight and children's reach.

What if I miss a dose of Trimethoprim?

Take it as soon as remembered, unless near the next dose time; do not double dose.

Is Trimethoprim suitable for children?

Yes, but dosage depends on age and weight; follow pediatrician's instructions.

Can I consume alcohol while taking Trimethoprim?

Avoid alcohol to minimize potential stomach upset and treatment efficacy.

Does Trimethoprim interact with other medications?

Yes, may interact with blood thinners, diabetes medications, and certain diuretics.

How to take Trimethoprim correctly?

Swallow whole with water, with or without food, as directed by your doctor.

What infections does Trimethoprim not treat?

Viral infections (e.g., colds, flu), fungal infections, and some bacterial infections.

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