[en] Medical intervention should begin within a few hours after contamination of the human body, otherwise it is impossible to influence the deposition of radioisotopes in the organs and tissues. The choice of decorporating drugs is very limited. One of them is DTPA, capable to accelerate the discharge of transition, rare earth and transuranic elements from the body. Various new agents have been developed for this purpose which can bind radioactive strontium in body fluids and tissues. These new pharmaceuticals are reported preliminarily, and the first experimental results are presented. (N.T.)