[Action of unithiol on the toxic effect of antitumor preparations]

The effect of unitiol treatment on the toxicity of dactinomycin, 5-fluorouracil, bleomycetin and vincristine was studied in CBA mice. Unitiol treatment was shown to decrease the acute toxicity of dactinomycin and involves a lower loss of body weight. Also, it reduced dactinomycin hemotoxicity which was assessed on the basis of leukocyte count in peripheral blood. Conversely, unitiol potentiated the acute toxic effect of 5-fluorouracil, bleomycetin and vincristine which was matched by body weight loss following treatment with cytostatic drugs. The results point to a wide range of the biological effects of unitiol.