[Study on the protective effect of vitamin A on stress ulcer of the rat (author's transl)].

The protective effect of vitamin A on "restraint stress" ulcer formation was studied in rats. Animals receiving i.m. injections of 1000 or 2000 IU vitamin A, respectively, every 6 h after 19 h of immobilisation had significantly fewer and smaller ulcers than had the controls. There was no difference between the 2 doses. Only a few rats had no gastric ulcers at all, that means the protection was not absolute. Therapeutic use of vitamin A in the prophylaxis of stress ulcer is discussed.