Paper II
2019 July (Supplementary) (2010 Scheme)

Question

Sucralfate in gastric ulcer

Q101 marksShort Answers

Answer

In an acidic environment, sucralfate (a sucrose-aluminium sulphate complex) polymerizes and forms a viscous, sticky paste that binds preferentially to the proteins exposed at the ulcer base (which has a more positive charge than normal mucosa), forming a physical protective barrier over the ulcer. This barrier protects the ulcer from further damage by acid, pepsin, and bile, allowing natural mucosal healing to occur, making it effective in gastric ulcer treatment.

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