By means of hydrogen clearance on conscious rabbits with implanted platinum electrodes it was established that pyridoxine (1 and 10 mg/kg) used against the background of sea sickness decreased the dilatational reaction of the cerebral vessels occurring during the stimulation of the vestibular apparatus, reduced the blood supply to the cerebral hemispheres with insignificant changes of oxygen tension in the cortical structures, relieved acidosis and hypoxemia developing during sickness in the orthostatic position, increased oxygenation of the arterial blood without influencing significantly pathomorphological shifts in the brain tissue.
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