[Effect of valeprotriate on spontaneous motor activity in mice].

The purpose of the present investigation was to study effects of valtrate and acetoxyvaltrate hydrine on locomotor activity of mice. The method is characterized by the control of single animals over two total periods of activity. A differentiated effect curve caused by the substances during 24 h was maintained and an effect by doses used in therapy became evident. Locomotor activity was significantly inhibited by valtrate in a concentration of 0.1 mg/kg injected i.v. and 0.5 mg/kg if applied p.o. Higher concentrations did not result in an elongated effect. Acetoxyvaltrate hydrine, which is characterized by missing epoxide structure, caused reduced locomotor activity in a concentration of 4 mg/kg.