Effect of Oral Omeprazole on Fasting and Meal Stimulated Serum Gastrin and Serum Pepsinogen I Levels in Healthy Volunteers

Abstract
Omeprazole is a potent, long acting inhibitor of gastric acid secretion. It acts by blocking the H+K+ATPase in the parietal cell. Intragastric neutralization causes a rise in serum gastrin levels and, after longer periods of time, hyperfunction of gastrin producing cells may result. Therefore, the effects and after-effects of oral omeprazole on fasting and meal stimulated serum gastrin and serum pepsinogen I levels were studied.

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