Question

tuberculosis from consumption to molecular diagnosis

1. patients with active tb are treated with ____________ combined with various other drugs if the initial four - drug therapy does not work.

a ○ ethambutol
b ○ penicillin
c ○ streptomycin
d ○ vancomycin

Explanation:

Ethambutol is one of the main drugs used in the treatment of tuberculosis. Penicillin is mainly used against bacteria like streptococci and staphylococci and not a primary TB - treating drug. Streptomycin is an older TB - treating drug but not the one typically combined in case of initial four - drug therapy failure as commonly as ethambutol. Vancomycin is used for treating infections caused by Gram - positive bacteria and not for TB treatment.

Answer:

A. ethambutol