[Comparative analysis of the behavioral, neurochemical and autonomotropic effects of mebikar and diazepam].

It has been shown that the tranquilizers, diazepam (a 1,4-benzodiazepine derivative) and mebicar (a derivative of bicyclic bisureas) produce one-line inhibition of the production of the conditioned reflex of active avoidance in rats and of their "open-field" motor activity. Both the drugs change the balance of neuroactive amino acids in the animals' brain. However they produce different changes: diazepam increases the content of asparaginic and glutamic acids, while mebicar raises that of gamma-butyric acid. No interrelationship was found between psychotropic and vegetotropic effects of the tranquilizers.