<prompt> Prostaglandin used in the treatment of peptic ulcer isCarboprostMisoprostolDinoprostLatanoprost  <response>: Ans b Misoprosotol Kef: KDT 6th ed p. 629Misoprostol is the prostaglandin analogue used in the treatment of peptic ulcer.DRUGS USED IN PEPTIC ULCER1 H2 antagonists-ranitidine, cimetidine, famotidine roxatidine and nizatidine.Nizatidine has little first-pass metabolism and a bioavailability of al-most 100. Famotidine is the most potent among them.2 Proton pump inhibitors PPIs- omeprazole, lansoprazole, rabeprazole, pantoprazole, and esomeprazole. They are the most effective drugs in GERD.3 Mucosal protective agents-sucralfate, colloidal bismuth compounds4 Prostaglandin analogs-misoprostol5 Antacids6 Anticholinergics-Pirenzipine, propantheline7 Anti-H.pylori drugs -Amoxicillin, clarothromycin, metronidazole, tinidazole, tetracycline. 