What are the treatment options for latent tuberculosis infection?

Latent tuberculosis infection means tuberculosis bacteria are present but currently inactive. A person may feel well and does not have the same illness pattern as active tuberculosis, yet treatment can reduce the chance of the infection becoming active later.

Before preventive treatment, a clinician reviews your symptoms, exposure history and test results. Chest imaging or other checks may be needed when active disease is possible. This distinction matters because latent infection and active tuberculosis require different treatment plans.

A clinician selects an antibiotic course based on your age, liver health, pregnancy or contraception considerations, other medicines, and the likelihood of drug-resistant infection. Treatment must be taken exactly as prescribed; stopping early can leave infection inadequately treated.

Attend scheduled reviews and report new symptoms promptly. Antibiotics can interact with other medicines and may affect the liver. Avoid starting supplements or non-prescription medicines without checking them with the treating clinician. Tuberculosis screening helps clarify whether further assessment is needed.

Seek urgent medical advice for yellowing of the skin or eyes, dark urine, severe nausea, unusual bleeding, marked weakness, confusion or breathing difficulty while taking treatment. Contact a clinician promptly for persistent cough, fever, night sweats, coughing blood or unexplained weight loss, because these can require assessment for active tuberculosis.

Ask which regimen is suitable, how active tuberculosis was excluded, what interactions apply to your medicines, which symptoms need urgent contact, and how follow-up will confirm that the course is complete.