Abstract

1. We studied the effects of acute oral dosing with clofibrate (500 mg four times daily) on 24 h intragastric acidity and plasma gastrin concentration in 12 healthy female subjects. 2. The 24 h integrated intragastric acidity rose from 429 mmol l-1 h (95% CI 296-479) before dosing to 527 mmol l-1 h (95% CI 385-664) on the day of dosing (+23%; P = 0.041), but no change was observed in the 24 h integrated plasma gastrin concentration: 420 pmol l-1 h (95% CI 282-499) before and 389 pmol l-1 h (95% CI 249-489) during dosing (P = 0.182). 3. We conclude that clofibrate has no acute antisecretory effect on the human stomach, and that human gastrin-induced enterochromaffin-like cell proliferation is unlikely with this drug.

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