GAST and ulcer disease: The significant increase in pH of gastric juice and mucus weight (p < 0.001) that we recorded after ulcer induction by absolute ethanol in rats pretreated with prickly pear oil (especially with dose 2) vs. negative control and sucralfate and ranitidine groups could suggest an inhibitory activity of this oil on H2-histaminic or on the other stimulatory pathways including gastrin and/or acetylcholine parietal cell receptors.