Abstract
In a placebo-controlled, double-blind, multiplecrossover study, the initial and chronic acid-inhibitoryeffect of lansoprazole 30 mg, orally administered halfan hour before breakfast or immediately after breakfast, and of omeprazole 20 mg,administered postprandially, respectively, wasinvestigated in 16 healthy volunteers, using ambulant24-hr intragastric pH monitoring. On the first day ofmedication, only preprandially administered lansoprazolereduced acid secretion significantly (median 24-hr pH3.0; P < 0.05). On day 15, the median 24-hrintragastric pH of lansoprazole preprandial (pH 4.1),lansoprazole postprandial (pH 4.3), and omeprazolepostprandial (pH 3.3), respectively, differedsignificantly (P < 0.05) from placebo (pH 1.2). It isconcluded that the interaction between food intake andlansoprazole administration only is important at the startof oral therapy. Lansoprazole taken before breakfast iseffective even on the initial day oftreatment.
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Brummer, RJ., Geerling, B.J. & Stockbrugger, R.W. Initial and Chronic Gastric Acid Inhibition by Lansoprazole and Omeprazole in Relation to Meal Administration. Dig Dis Sci 42, 2132–2137 (1997). https://doi.org/10.1023/A:1018891106425
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DOI: https://doi.org/10.1023/A:1018891106425