[Radioprotective activity of complexes of copper, cobalt and zinc with substituted acylhydrazones].

Acylhydrazone metal complexes belong to a new class of radioprotective agents that have a cytostatic effect increasing, in some cases, the survival rate of irradiated animals by 40-60 per cent compared to irradiated controls. The most active drugs are hypotoxic and applied in much lower doses than ordinary S-containing radioprotective agents to achieve the same protective effect.