Digestive Diseases and Sciences

, Volume 31, Issue 3, pp 241–246 | Cite as

Colonic motility and gastric emptying in patients with irritable bowel syndrome effect of pretreatment with octylonium bromide

  • Francesco Narducci
  • Gabrio Bassotti
  • Maria Teresa Granata
  • Maria Antonia Pelli
  • Manuela Gaburri
  • Renato Palumbo
  • Antonio Morelli
Original Articles


This study was undertaken to evaluate (1) the colonic response to eating for a prolonged time in healthy subjects and patients with the irritable bowel syndrome (IBS); (2) the effect of octylonium bromide, a new smooth muscle relaxant acting by interfering with calcium ion mobilization, on the postprandial colonic motility; and (3) whether chronic gastric stasis could be responsible for both the dyspeptic symptoms often complained of by IBS patients and the faulty colonic response to eating. The colonic response to a 1000-kcal mixed meal in ten healthy subjects was characterized by two transient (from 0 to 60 and from 120 to 150 min postprandially, respectively) increases in colonic motor activity; ten IBS patients showed a continuous postprandial increase in colonic motor activity that was not terminated 180 min after eating. Treatment of IBS patients with octylonium bromide (80 mg, qid,per os) for 5–7 days reduced their colonic response to eating to a very short increase in colonic motor activity limited to the first 30 min. Finally, gastric emptying was not different in the two groups.


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Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • Francesco Narducci
    • 1
    • 2
  • Gabrio Bassotti
    • 1
    • 2
  • Maria Teresa Granata
    • 1
    • 2
  • Maria Antonia Pelli
    • 1
    • 2
  • Manuela Gaburri
    • 1
    • 2
  • Renato Palumbo
    • 1
    • 2
  • Antonio Morelli
    • 1
    • 2
  1. 1.Department of Internal Medicine, Gastrointestinal UnitUniversity of PerugiaItaly
  2. 2.Department of Nuclear MedicineUniversity of PerugiaItaly

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