Isoniazid is a bactericidal antimycobacterial medication used for:
Indications
- Treatment of Active Tuberculosis (as part of combination therapy)
- Latent Tuberculosis Infection (LTBI)
- Prophylaxis for individuals exposed to TB (e.g., close contacts)
Common Side Effects
- Elevated liver enzymes
- Hepatotoxicity (risk increases with alcohol use or age >35)
- Peripheral neuropathy (often prevented with Vitamin B6 / Pyridoxine)
- Nausea, loss of appetite
