Peptic mucus synthesize especially prostaglandine E2 and I2. Prostaglandine E2 and I2 can impede acid secete and stimulate mucus and bicarbonate secretion. Misoprostol, a synthetic methyl ester analogue of prostaglandin is both a powerful inhibitor of gastric secretion and is able to protect the gastroduodenal mucosa from damage. Misoprostol and other prostaglandine derivatives can be alternati…