How does octreotide benefit refractory diarrhea?

How does octreotide benefit refractory diarrhea?

• A. It reduces the production of GI secretions and slows jejunal transit
• B. It increases intestinal motility
• C. It enhances absorption by increasing mucosal surface area
• D. It stimulates pancreatic enzyme secretion

Answer: (A)

Octreotide acts like a brake on the gut by mimicking the hormone somatostatin. It suppresses the release of many GI secretions—gastric, pancreatic, and intestinal—and also slows intestinal transit, especially through the small intestine. With fewer secretions and slower movement, there’s less fluid in the intestinal lumen and more time for absorption, which lowers stool volume and frequency in refractory diarrhea. This is why it’s particularly useful for secretory causes of diarrhea, such as VIPoma. It does not increase motility, nor does it boost mucosal surface area or pancreatic enzyme secretion; in fact, it inhibits pancreatic enzymes.

Octreotide acts like a brake on the gut by mimicking the hormone somatostatin. It suppresses the release of many GI secretions—gastric, pancreatic, and intestinal—and also slows intestinal transit, especially through the small intestine. With fewer secretions and slower movement, there’s less fluid in the intestinal lumen and more time for absorption, which lowers stool volume and frequency in refractory diarrhea. This is why it’s particularly useful for secretory causes of diarrhea, such as VIPoma. It does not increase motility, nor does it boost mucosal surface area or pancreatic enzyme secretion; in fact, it inhibits pancreatic enzymes.