The effect of the anti-isoniazid substance produced by mycobacteria on the chemotherapeutic activity of isoniazid in vivo.
D006801:Humans; D007538:Isoniazid; D009161:Mycobacterium; D009525:Niacin; D009539:Nicotinic Acids / Q000494:pharmacology*; D014376:Tuberculosis
D009539:Nicotinic Acids; D009525:Niacin; D007538:Isoniazid
NICOTINIC ACID ISOMERS/effects; TUBERCULOSIS/experimental