AI Article Synopsis
- The study investigates the effects of a new antihistamine drug, phencarol, on gastric secretion in rats.
- Unlike traditional H1 blockers, phencarol decreases both gastric secretion and free hydrochloric acid levels.
- Its antacid properties are similar to H2-receptor blocker cimetidine, but work through a different mechanism by activating diamine oxidase, reducing active histamine levels.
Article Abstract
Experiments were made to study the influence of a new antihistaminic drug phencarol [(quinuclidyl-3) diphenylcarbinol hydrochloride] on gastric secretion in rats. Unlike the blockers of H1-histamine receptors (diphenhydramine, omeril, pyrilamine, and cyproheptadine), phencarol reduces secretion and the content of free hydrochloric acid in the gastric contents. The antacid activity of the drug is similar to that of the H2-receptor blocker, cimetidine. However, phencarol differs from the latter drug in the mechanism of action. The antacid action of phencarol is likely to be the result of its activation effect on diamine oxidase, which leads to a decrease in the content of active histamine in the tissues and diminution of its supply to H2-histamine receptors that control gastric secretion.
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