Abstract
The pancreatic Schilling test (PST), a noninvasive, sensitive pancreatic function test, was studied to determine its ability to detect pancreatic proteolytic enzyme replacement in patients with pancreatic insufficiency. Seven subjects with well-documented pancreatic insufficiency and an abnormal PST consistent with pancreatic insufficiency were studied with three enzyme regimens: (1) Viokase (four tablets), (2) Pancrease (three capsules), and (3) Pancrease (10 capsules). The effect of cimetidine on the results of the PST with high-dose Pancrease was also determined in two subjects with pancreatic insufficiency and in two normal volunteers. The results of the investigation demonstrate that the PST is a sensitive noninvasive test for the presence of orally administered proteolytic enzymes in subjects with pancreatic insufficiency and in normals. Furthermore, the studies illustrate that the administration of enzymes in a form of enteric-coated microspheres does not enhance the delivery of proteolytic enzymes to the small intestine when compared to conventional high-dose enzyme replacement. Cimetidine appears to decrease the inactivation of the proteolytic enzymes in enteric-coated microspheres, suggesting that a low pH in the small intestine and stomach are responsible for the poor delivery of the enzymes into the small intestine.
Published Version
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