Abstract

There is a significant inverse relationship between intragastric acidity and plasma gastrin concentration. All generally available gastric acid antisecretory drugs induce a release of gastrin into the circulation. The more potent the gastric antisecretory dosage regimen or drug, the greater the rise of plasma gastrin concentration. The drug-induced rise of plasma gastrin concentration is of no direct clinical concern, although it may be partly responsible for the phenomenon of tolerance to H2-blockade. Drug-induced hypergastrinemia could stimulate the proliferation of certain cell lines associated with the gastrointestinal tract, for example, the gastric epithelium, ECL cells, or colonic neoplasms.

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