Read the side effects of Isoniazid as described in the medical literature. In case of any doubt consult your doctor or pharmacist.
Severe Effect - Liver damage.
Central Nervous System - Brain damage.
Gastrointestinal - Nausea, vomiting and stomach distress.
Blood - Anemia, decrease in platelets and eosinophilia.
Hypersensitivity - Fever and skin eruptions.
Other Precautions : * Avoid excess dosage.