Comparison of various treatments for irritable bowel syndrome

A previous therapeutic trial of factorial design showed that a combination of a psychotropic drug, a smooth-muscle relaxant, and a bulk former (lorazepam, hyoscine hydrobromide, and ispaghula husk) relieved symptoms of the irritable bowel syndrome more effectively than the same agents given singly....

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Veröffentlicht in:BMJ 1980-11, Vol.281 (6251), p.1317-1319
Hauptverfasser: Ritchie, J A, Truelove, S C
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description A previous therapeutic trial of factorial design showed that a combination of a psychotropic drug, a smooth-muscle relaxant, and a bulk former (lorazepam, hyoscine hydrobromide, and ispaghula husk) relieved symptoms of the irritable bowel syndrome more effectively than the same agents given singly. Another trial of similar design was undertaken to compare each of these three agents with another having the equivalent clinical actions--namely, Motival (fluphenazine/nortriptylene mixture), mebeverine, and bran. Ninety-six patients took part; all received three agents, one from each of the three pairs being compared, and no placebos were used. Fifty-six patients reported a sustained symptomatic improvement, which was a significantly higher incidence than in the previous trial, when placebos were used. Ispaghula was significantly more effective than bran. The combination of ispaghula, Motival, and mebeverine improved 11 out of 12 patients--significantly more than bran, Motival, and hyoscine (five improved), or bran, lorazepam, and mebeverine (four improved). Mebeverine was significantly more effective when combined with Motival (18 out of 24 improved) than with lorazepam (10 improved). These results confirm the value of a combined therapeutic approach to the relief of the irritable bowel syndrome and suggest the possibility of synergism between agents.
doi_str_mv 10.1136/bmj.281.6251.1317
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identifier ISSN: 0007-1447
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source MEDLINE; JSTOR Archive Collection A-Z Listing; PubMed Central
subjects Adolescent
Adult
Aged
Clinical Trials as Topic
Colonic Diseases, Functional - therapy
Dietary Fiber - therapeutic use
Diverticulum
Drug Combinations
Drug Therapy, Combination
Factorial design
Female
Fluphenazine - therapeutic use
Humans
Irritable bowel syndrome
Lorazepam - therapeutic use
Male
Medical treatment
Middle Aged
Motivation
Nortriptyline - therapeutic use
Phenethylamines - therapeutic use
Placebos
Psychotropics
Random Allocation
Scopolamine - therapeutic use
Smooth muscle
Symptoms
Writing tablets
title Comparison of various treatments for irritable bowel syndrome
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