By using spectrochromatography the dioxidine and quinoxidine passage with urine, depending upon their doses and the method of introduction, was studied in tests on mice. On its enteral or subcutaneous introduction dioxidine is found in the urine within a period of 7-to 24 hours (depending upon the dose administered). With its maximum concentration it is definable within 1 hour. The animals' urine showed no presence of quinoxidine. In mice receiving quinoxidine the urine is found to contain the product of its disacetylization-dioxidine. The dynamics of the dioxidine excretion with urine in mice receiving quinoxidine is in line with regularities common to the passage of dioxidine following its administration to mice.
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