[Complex-forming drugs used in metal poisoning].

The term poisoning (intoxication) means a health damage due to the effects of a chemical substance which was absorbed into the organism and which produced biochemical changes or even death of the organism. Many metals at higher concentrations induce an undesirable intervention into the enzymic systems though in trace amounts they catalyze many enzymic reactions. Chemicalization, which affects not only industrial and agricultural production but the household, personal hygiene and cosmetics as well, brings new chemical compounds which can increase risks of intoxication on unsuitable use. The living and working environment increases the danger of intoxication with metals or their compounds. The present paper pays attention to complexion-able compounds which are of fundamental importance in the treatment of intoxications with heavy metals.