Question: is nexium an h2 blocker?
Answer: Drugs that do the latter are called proton pump inhibitors (PPI's). Examples include esomeprazole (Nexium) and lansoprazole (Prevacid). Drugs that do the former are called H2 blockers, and examples include cimetidine (Tagamet), ranitidine (Zantac), and famotidine (Pepcid).