[Experimental data to substantiate the antitumor action of hydrazine sulfate].

It was found that under the influence of hydrazine sulfate, which in the dosage of 60 mg/kg would induce a 50% suppression of Walker carcinosarcoma in rats, there is the decreased activity of mitochondrial monoamine oxidase and a sharp reduction in the activity of some microsomal phosphatases. Vitamin B6 injection some hours before injecting hydrazine sulfate lessens the rate of suppression of the tumor growth up to 50%. The results obtained indicate that the antitumor effect of hydrazine sulfate may be related to the suppressed monoamine oxidate activity and vitamin B6 deficiency.