Management of IBS Clinical Practice Guidelines (BSG, 2021)

Guidelines for the management of patients with irritable bowel syndrome (IBS) were published in July 2021 by the British Society of Gastroenterology (BSG) in Gut.^[51]These are some of the highlights.

Fiber and Dietary Therapies

Food elimination diets based on immunoglobulin G (IgG) antibodies are not recommended, nor are gluten-free diets.

Soluble fiber is effective for global symptoms and abdominal pain, but insoluble fiber should be avoided.

A diet low in fermentable oligosaccharides, disaccharides, and monosaccharides and polyols is effective second-line therapy for global symptoms and abdominal pain.

Probiotics

Probiotics may be effective for global symptoms and abdominal pain, but no specific species or strain can be recommended.

First-Line Drugs for IBS

Loperamide may be effective for diarrhea. Peppermint oil and certain antispasmodics may be effective for global symptoms and abdominal pain. Polyethylene glycol may be effective for constipation.

Gut-Brain Neuromodulators

Tricyclic antidepressants (TCAs) used as gut-brain neuromodulators are effective second-line treatment for global symptoms and abdominal pain. Selective serotonin reuptake inhibitors (SSRIs) used as gut-brain neuromodulators may be effective second-line treatment for global symptoms.

Second-Line Drugs in Secondary Care

Eluxadoline, 5-hydroxytryptamine 3 (5-HT3) receptor antagonists, and rifaximin are efficacious second-line drugs for IBS with diarrhea (IBS-D) in secondary care. Linaclotide, lubiprostone, plecanatide, tenapanor, and tegaserod are efficacious second-line agents for IBS with constipation (IBS-C) in secondary care.

Psychological Therapies

IBS-specific cognitive behavioral therapy (CBT) and gut-directed hypnotherapy may be efficacious for global symptoms.

Severe or Refractory Symptoms

Severe or refractory IBS should be managed with an integrated multidisciplinary approach, with care taken to avoid iatrogenic harms.

Combination gut-brain neuromodulators (augmentation) may be considered for more severe symptoms.

Medication

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Media Gallery

Irritable Bowel Syndrome (IBS). What is IBS? IBS is a condition that involves recurrent abdominal pain as well as abnormal bowel motility, which can include diarrhea and/or constipation.

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Author

Jenifer K Lehrer, MD Attending Physician, Department of Gastroenterology, Jefferson Health System Torresdale Campus, Philadelphia

Jenifer K Lehrer, MD is a member of the following medical societies: American College of Gastroenterology, American Gastroenterological Association, American Medical Association

Disclosure: Nothing to disclose.

Coauthor(s)

Gary R Lichtenstein, MD Professor of Medicine, Director, Center for Inflammatory Bowel Disease, Department of Medicine, Division of Gastroenterology, Perelman School of Medicine at the University of Pennsylvania

Gary R Lichtenstein, MD is a member of the following medical societies: American College of Gastroenterology, American College of Physicians, American Gastroenterological Association, American Society for Gastrointestinal Endoscopy

Disclosure: Serve(d) as a director, officer, partner, employee, advisor, consultant or trustee for: Abbott Corp/Abbvie; Actavis; Alaven; CellCeutrix; Celgene; Ferring; Gilead; Hospira; Janssen Orthobiotech; Luitpold/American Regent; Pfizer Pharm; Prometheus Labs; Romark; Salix Pharma/Valeant; Santarus/Receptos/Celgene; Shire Pharma; Takeda; UCB<br/>Received research grant from: Salix Pharm/Valeant; Santarus/Receptos/Celgene; Shire Pharm; UCB<br/>Received author or editor honorarium or book royalty from for: Clinical Advances in Gastroenterology; Gastroenterology and Hepatology; Gastro-Hep Communications; Ironwood; Luitpold/American Regent; Merck; McMahon Publishing; Romark; SLACK Inc; Springer Science and Business Media; Up-To-Date.

Specialty Editor Board

Mary L Windle, PharmD Adjunct Associate Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Nothing to disclose.

Chief Editor

BS Anand, MD Professor, Department of Internal Medicine, Division of Gastroenterology, Baylor College of Medicine

BS Anand, MD is a member of the following medical societies: American Association for the Study of Liver Diseases, American College of Gastroenterology, American Gastroenterological Association, American Society for Gastrointestinal Endoscopy

Disclosure: Nothing to disclose.

Acknowledgements

Douglas M Heuman, MD, FACP, FACG, AGAF Chief of GI, Hepatology, and Nutrition at North Shore University Hospital/Long Island Jewish Medical Center; Professor, Department of Medicine, Hofstra North Shore-LIJ School of Medicine

Douglas M Heuman, MD, FACP, FACG, AGAF is a member of the following medical societies: American Association for the Study of Liver Diseases, American College of Physicians, and American Gastroenterological Association

Disclosure: Novartis Grant/research funds Other; Bayer Grant/research funds Other; Otsuka Grant/research funds None; Bristol Myers Squibb Grant/research funds Other; Scynexis None None; Salix Grant/research funds Other; MannKind Other

Francisco Talavera, PharmD, PhD Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Medscape Salary Employment

Rajeev Vasudeva, MD, FACG Clinical Professor of Medicine, Consultants in Gastroenterology, University of South Carolina School of Medicine

Rajeev Vasudeva, MD, FACG is a member of the following medical societies: American College of Gastroenterology, American Gastroenterological Association, American Society for Gastrointestinal Endoscopy, Columbia Medical Society, South Carolina Gastroenterology Association, and South Carolina Medical Association

Disclosure: Pricara Honoraria Speaking and teaching; UCB Consulting fee Consulting