Which is a side effect of sucralfate?

Which is a side effect of sucralfate?

• A. Dizziness
• B. Constipation
• C. Diarrhea
• D. Dry mouth

Answer: (D)

Sucralfate works by forming a protective, viscous barrier over ulcers in the stomach and duodenum and is not significantly absorbed into the bloodstream, so its adverse effects are mainly local to the GI tract or oral mucosa. Dry mouth is a documented side effect, reflecting nonspecific changes in the oral environment some people experience with this aluminum-containing preparation. Dizziness would imply systemic or CNS involvement, which is unlikely with sucralfate, and diarrhea is not a typical GI side effect for this drug. So, among the options, dry mouth best fits the known adverse‑effect profile of sucralfate.