Low dose famotidine and cimetidine in single postprandial doses: a placebo controlled comparative study of overnight pH

To investigate the relative abilities of low doses of famotidine and cimetidine to raise intragastric pH after a single postprandial evening dose, 16 healthy volunteers were recruited to a four period crossover trial of famotidine 10 mg, cimetidine 100 mg and 200 mg compared with placebo. Intragastr...

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Veröffentlicht in:Gut 1995-09, Vol.37 (3), p.325-328
Hauptverfasser: Reilly, T G, Mann, S G, Panos, M Z, Walt, R P
Format: Artikel
Sprache:eng
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Zusammenfassung:To investigate the relative abilities of low doses of famotidine and cimetidine to raise intragastric pH after a single postprandial evening dose, 16 healthy volunteers were recruited to a four period crossover trial of famotidine 10 mg, cimetidine 100 mg and 200 mg compared with placebo. Intragastric pH was monitored between 1800 and 0730 with a nasogastric pH electrode. Median gastric pH rose from 1.35 (interquartile range 1.1-1.65) with placebo to 1.95 (1.6-5.35, p < 0.001 Friedman rank) after dosing with famotidine 10 mg, to 1.46 (1.3-2.0, 0.05 < p < 0.1) after cimetidine 200 mg, and remained 1.35 (1.1-1.6, p > 0.2) after cimetidine 100 mg. Intragastric pH was above 3 for 34% (p < 0.005) of the time after dosing with famotidine, compared with 13.6% (p > 0.2) after cimetidine 200 mg, 9.5% (p > 0.2) after cimetidine 100 mg, and 4.7% after placebo. The rise of intragastric pH after famotidine 10 mg is significantly greater than that after either 200 mg or 100 mg cimetidine when the drugs are used postprandially.
ISSN:0017-5749
1468-3288
1458-3288
DOI:10.1136/gut.37.3.325