4 doctors weighed in:
Why is isoniazid is prescribed for latent tb?
4 doctors weighed in

3 doctors agree
In brief: 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).

In brief: 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).
Dr. Michael H. T. Sia
Dr. Michael H. T. Sia
Thank
Get help from a real doctor now
Dr. Cindy Juster
Board Certified, Pediatrics
32 years in practice
2M people helped
Continue
108,000 doctors available
Read more answers from doctors