[Effect of ephedrine on the blood supply and oxygen regimen of the brain during motion sickness].

In chronic experiments on conscious rabbits it was found by the method of hydrogen clearance and polarography that intravenous injections of ephedrine hydrochloride (1 and 5 mg/kg) attenuate cerebral vessels reactions in vestibular disorders caused by sickness, reduce or prevent an increase of the blood flow in the brain as a whole or in individual cortical structures, exert no significant effect on oxygen tension in the brain.