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. 1991 Jun;35(6):1085–1088. doi: 10.1128/aac.35.6.1085

Effects of amoxicillin-clavulanate combination on the motility of the small intestine in human beings.

F Caron 1, P Ducrotte 1, E Lerebours 1, R Colin 1, G Humbert 1, P Denis 1
PMCID: PMC284291  PMID: 1929247

Abstract

The amoxicillin-clavulanate combination (Augmentin) frequently induces gastric complaints and diarrhea by an unknown mechanism. The aim of this study was to assess the effects of two orally therapeutic regimens of amoxicillin-clavulanate on small bowel motility in human beings. Duodeno-jejunal manometric recordings were performed in six healthy subjects treated in a cross-over double-blind study with placebo; amoxicillin-clavulanate, 1 g plus 250 mg per os every 12 h for 3 days; or amoxicillin-clavulanate, 1 g plus 250 mg per os every 12 h on day 3 only (1-day regimen). Recordings were all performed on day 3 during a diurnal fasting period, a fed state after a standard dinner, and a nocturnal fasting period. Amoxicillin-clavulanate did not affect the motility of the small intestine during the diurnal fast or the fed state. During the nocturnal fast, amoxicillin-clavulanate significantly increased the motility index of the nonpropagated contractions and tended to increase the duration and the amplitude of the propagated contractions. The same digestive motor effect was already observed on the first day of treatment (1-day regimen). This study demonstrates that the oral administration of a therapeutic regimen of amoxicillin-clavulanate is associated, in most cases, with the occurrence of small intestinal motor disturbances.

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Selected References

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