Natural Health Research

Naturopathic Medicine
Health Quizzes
Isoniazid, INH


Isoniazid is a first-line anti-tuberculous medication used in the prevention and treatment of tuberculosis.




Mycobacterium avium, Mycobacterium bovis, Mycobacterium intracellulare, Mycobacterium kansasii, Mycobacterium sp., Mycobacterium szulgai, Mycobacterium tuberculosis, Mycobacterium xenopi, tremor, tuberculosis, tuberculosis prophylaxis,

Side Effects

abdominal pain, acneiform rash, agranulocytosis, aplastic anemia, diarrhea, elevated hepatic enzymes, encephalopathy, exfoliative dermatitis, hemolysis, hepatitis, injection site reaction, interstitial nephritis, maculopapular rash, nausea/vomiting, optic neuritis, pancytopenia, peripheral neuropathy, sideroblastic anemia, thrombocytopenia,

Drug-Vitamin-Herb Interactions

Positive interactions:

Isonazid blocks the action of vitamin B6 (niacin). Supplementation can prevent development of pellagra (B6 deficiency).

Vitamin B6
Vitamin B6 may prevent the development of tingling and numbness in the extremities.

Vitamin D
Isonazid may interfere with the conversion of vitamin D into its active forms.




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