Effect of Metoclopramide, Bethanechol, and Loperamide on Gastric Residence Time, Gastric Emptying, and Mouth-to-Cecum Transit Time

Autor: William D. Heizer, Judy C. Bryson, George E. Dukes, M. Gray Kirby, J. Robert Powell
Rok vydání: 1989
Předmět:
Zdroj: Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy. 9:226-231
ISSN: 0277-0008
DOI: 10.1002/j.1875-9114.1989.tb04130.x
Popis: The effects of metoclopramide, bethanechol, and loperamide on the gastric residence time (GRT), gastric emptying (GE), and mouth-to-cecum transit time (MCTT) of a solution were investigated in three separate studies of five healthy male volunteers each. Metoclopramide in doses of 5, 10, and 15 mg prolonged GRT by 33, 88, and 162%, respectively, almost reaching statistical significance (p 0.058). A relationship was observed between GRT prolongation, and metoclopramide area under the plasma-time curve (p 0.01) and metoclopramide observed time to maximum concentration (p 0.01). Metoclopramide had an inconsistent effect on MCTT. Bethanechol 50 mg prolonged GRT by 64% (p 0.031) and had no effect on MCTT. Loperamide at doses of 2 and 8 mg prolonged GRT by 18 and 115% (p 0.043) and MCTT by 30 and 130% (p 0.0001), respectively. None of these motility-altering agents affected GE.
Databáze: OpenAIRE