Which one of the following is a second-line drug for Tuberculosis?

Correct option is C

Ans (c)
Sol. Rifampicin: This is a first-line drug for tuberculosis and is part of the standard treatment regimen due to its effectiveness in killing Mycobacterium tuberculosis.
Ethambutol: This is also a first-line drug used in combination therapy for tuberculosis to prevent drug resistance.
Amikacin: This is a second-line drug for tuberculosis, typically used in cases of multidrug-resistant tuberculosis (MDR-TB) or when first-line drugs are ineffective or not tolerated. This is the correct answer.
Isoniazid: Like Rifampicin and Ethambutol, Isoniazid is a first-line drug used in the primary treatment of tuberculosis.