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Morning versus evening dosing of lansoprazole 30 mg daily on twenty-four-hour intragastric acidity in healthy subjects
A. G. FRASER , A. M. SAWYERR , M. HUDSON , M. S. H. SMITH & R. E. POUNDER
  1 University Department of Medicine, Royal Free Hospital School of Medicine, London, UK
Correspondence to: Prof. R. E. Pounder

The study was supported by a grant from Lederle Laboratories. Clinical medical students from the Royal Free Hospital School of Medicine provided technical assistance.

ABSTRACT

Background: Morning dosing is usually recommended with proton pump inhibitors, but there are few data from 24-h intragastric acidity studies comparing times of dosing.

Methods: A double-blind, placebo-controlled study was performed on the seventh day of dosing to compare the effects of lansoprazole 30 mg given either in the morning or evening on 24-h intragastric acidity in 32 healthy volunteers.

Results: The median integrated 24-h intragastric acidity on the seventh day of morning dosing with lansoprazole 30 mg was decreased to 36% of the placebo value, compared with 42% for evening dosing. For each daytime meal-related interval, morning dosing was significantly more effective for controlling acidity, but there was no significant difference between the regimens during the night interval (23.00–08.00 h).

Conclusions: These data favour morning dosing of lansoprazole 30 mg for routine use, but patients with mainly nocturnal symptoms may be best treated by evening dosing.


DIGITAL OBJECT IDENTIFIER (DOI)
10.1046/j.1365-2036.1996.33175000.x About DOI

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