The duration of TB treatment varies depending on the type of tuberculosis and the patient's response to treatment. The provided reference specifically addresses Multi-Drug Resistant Tuberculosis (MDR-TB).
For MDR-TB, treatment lasts 15-24 months after culture conversion, according to the provided reference. This includes an intensive phase of 5-7 months, followed by a continuation phase. The drugs should be prescribed daily, and Directly Observed Therapy (DOT) is recommended.