PTB drug categories

CATEGORY 1

NEW PTB Pts with sputum (+)

Seriously ill pts with severe forms of:
Smear (-) PTB with extensive parenchymal involvement
Extra pulmonary TB

INTENSIVE PHASE

2 months
Rifampicin
INH
Pyrazinamide
Ethambutol

MAINTENANCE PHASE

4 months
Rifampicin
INH

CATEGORY 2

Relapse

Failures

Others

INTENSIVE PHASE

2 months
Rifampicin
INH
Pyrazinamide
Ethambutol
Streptomycin

1 month
Rifampicin
INH
Pyrazinamide
Ethambutol

MAINTENANCE PHASE

5 months
Rifampicin
INH
Ethambutol

CATEGORY 3

NEW PTB Pts with sputum smear (-) 3x & CXR result of TB minimal

Failures

INTENSIVE PHASE

2 months
Rifampicin
INH
Pyrazinamide

MAINTENANCE PHASE

2 months
Rifampicin
INH