[The dependence of the radioprotective effect of iodine-containing waters on the concentration and form of the iodine].

Preradiation intragastric injection of iodine-containing waters during 21 days increased mean survival and decreased the mortality of rats exposed to gamma-radiation (whole-body dose 5.4 and 6.4 Gy, dose rate 1.053 Gy/min). The highest radioprotective effect was reached in use of waters containing 49 and 100 mg/1 positive iodine ions in radiation dose 5.4 Gy. In the whole-body radiation 6.4 Gy, intragastric injection of water with 49 mg/1 positive ions resulted in 100% survival.