Keywords: Aciphex; Dexilant; Duexis; GERD; H2 receptor antagonists; Nexium; Pepcid; Prevacid; Prilosec; Protonix; Tagamet; Vimovo; Zantac; Zegerid; adverse effects; amoxicillin; cimetidine; clarithromycin; dexlansoprazole; dosage; drug interactions; efficacy; esomeprazole; famotidine; ibuprofen; lansoprazole; naproxen; nizatidine; omeprazole; pantoprazole; peptic ulcer disease; pregnancy; proton pump inhibitors; rabeprazole; ranitidine; safety.