Antitubercular agents - Concepts in easy way

How anti-tubercular agents act and what are the important side effects? First line drugs in the treatment of tuberculosis include isoniazid, rifampin, pyrazinamide and ethambutol. Many of the drugs can be used as second line agents like ethionamide, cycloserine, capreomycin, PAS, aminoglycosides, fluroroquinolones and even macrolides.
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