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A 45-year-old member asked:

Why is isoniazid is prescribed for latent tb?

1 doctor answer5 doctors weighed in
Dr. Michael H. T. Sia
Pediatrics 31 years experience
See below:: Isoniazid is used alone or with other drugs to treat tuberculosis (TB) and to prevent it in people who have had contact with tuberculosis bacteria. It eliminates only active (growing) bacteria. Since the bacteria may exist in a resting (nongrowing) state for long periods, therapy with Isoniazid (and other antituberculosis drugs) must be continued for a long time (usually 6-12 months).

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Last updated Oct 24, 2017

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