Quantitative determination of hydrazines berived from isoniazid in patients. I.

Abstract

Hydrazine formation took place in man after the oral administration of isoniazid. The successive excretion of free hydrazine, one of the well-known mutagens, was observed in the urine of the patients on INH-treatment. The intact INH and the other metabolites, acetyl-INH, acetyl-hydrazine and diacetylhydrazine, were also analyzed by gas chromatography-mass spectrometry.