The aim of the work was to elucidate the radioprotective activity of multyphytoadaptogene (MPA) in mice in various conditions of gamma radiation and MPA application. Males of CBA x C57BL/6 F1 mice were given 15% MPA solution with drinking water 2 weeks before the radiating (preventive application), 2 weeks before and 2 weeks after the radiating (preventive and therapeutic application) and also 2 weeks after the radiating only (therapeutic application). Animals of control groups received radiation or were given 5% ethanol solution in drinking water in the same application schemes. MPA increased the mice survival in preventive, preventive and therapeutic as well as therapeutic applications after 7.5 Gy radiation (66.7: 66.4 and 40.2% correspondingly). After 11.0 Gy radiation MPA increased the mice survival in preventive as well as preventive and therapeutic applications (75.0 and 76.9% correspondingly). MPA administration improved the somatic state, weight of animals, quality of life. MPA has no side effects. The data suggest the radioprotective activity of MPA.
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