If you are:
Only When Necessary:
Precaution: MONITOR INFANT FOR HEPATOTOXICITY AND NEURITIS
An adult over 60:
management or monitoring precaution: Hepatic-Highest incidence of hepatitis in patients age > 50 years. Monitor LFTs closely.
Giving Niazid tablet to a child under 12:
management or monitoring precaution: Supplement pyridoxine if infant is breastfed exclusively.