<prompt> All of the following are H2 blockers except ?CimetidineRanitidineFamotidineOmeprazole  <response>: Ans. is d i.e., Omeprazole Drugs for peptic ulcer 1. Reduce gastric acid secretion a H2 antihistaminic - Cimetidine, Ranitidine, Famotidine, Roxatidine. b Proton pump inhibitors - Omeprazole, Lansoprazole, Pantoprazole, Rabeprazole, Esomeprazole. c Anticholinergics - Pirenzepine, propantheline, oxyphenonium. d Prostaglandin analogue - Misoprostol, enprostil, rioprostil. 2. Neutralization of gastric acid antacids a Systemic - Sodium bicarbonate, sodium citrate. b Non systemic - Magnesium hydroxide, Mag. trisilicate, aluminium hydroxide, Magaldrate, calcium carbonate. 3. Ulcer protectives Sucralfate, colloidal bismuth subcitrate, Prostaglandin analogue. 4. Anti H. pylori durgs Amoxicillin, clarithromycin, metronidazole, Tinidazole, tetracycline. Note - PG analogue have both antisecretory - HC1 secretion as well as cytoprotective action. 