IBS With Constipation: What Gastroenterology Guidelines Recommend Beyond Fiber
Bloating & DigestionArticleWhen bloating, belly pain and constipation keep coming back despite fiber and laxatives, there are prescription options. A 2022 gastroenterology guideline gave its strongest recommendation to linaclotide and conditional support to several others, while advising against SSRIs for IBS-C. A separate guideline supports a short low-FODMAP trial and gut-directed psychotherapy.
In this article
Irritable bowel syndrome (IBS) is common and can seriously affect quality of life.1 In the constipation-predominant type (IBS-C), belly pain and bloating come with hard or infrequent stools. Our guide to what IBS is covers the basics. When fiber and over-the-counter laxatives aren’t enough, two U.S. gastroenterology guidelines lay out the options.
First, make sure it’s IBS
Experts suggest diagnosing IBS from its typical pattern rather than testing endlessly to exclude everything.1 But new bowel symptoms after 50 deserve a careful look, including whether you’re up to date on colon screening. Our article on colon screening tests explains options.
What the 2022 IBS-C guideline recommends
The American Gastroenterological Association reviewed nine treatments and made nine recommendations.2
| Strength | Treatments |
|---|---|
| Strong (high certainty) | Linaclotide2 |
| Conditional (moderate certainty) | Tenapanor, plecanatide, tegaserod, lubiprostone2 |
| Conditional (low certainty) | Polyethylene glycol laxatives, tricyclic antidepressants, antispasmodics2 |
| Conditional against | SSRI antidepressants for IBS-C2 |
Linaclotide, plecanatide and lubiprostone work by drawing fluid into the bowel. A separate guideline from the American College of Gastroenterology2 also recommends this type of medicine for IBS-C.1
Non-drug options with support
- A short trial of a low-FODMAP diet, ideally with a dietitian, to improve overall symptoms.1 Our guide to the three low-FODMAP phases explains how.
- Gut-directed psychotherapy, such as CBT or hypnotherapy for IBS.1 Our article on IBS hypnotherapy covers what to expect.
- Peppermint oil has some supporting evidence. See our peppermint oil review.
Questions to ask
- Am I sure this is IBS, and is my colon screening current?
- Which prescription fits my symptoms, budget and insurance?
- What side effects should I expect, such as diarrhea?
- Would a dietitian or gut-directed therapy help alongside medicine?
Our guides to the laxative aisle and PEG versus bisacodyl cover store-bought options.
Try: “Fiber and powder laxatives haven’t controlled my IBS pain and constipation. Would a prescription like linaclotide make sense, and what will it cost?”
Bloated by Dinner includes a Belly Clock log and a Test-It list with a visit script. Use them to track pain, bloating and bowel movements before and after any change. See the book.
This article is for general educational purposes only and is not medical advice. It isn't a substitute for diagnosis or treatment from a qualified healthcare professional who knows your health history. Please don't ignore professional advice or delay getting care because of something you read here. New bowel symptoms after 50, blood in the stool, weight loss, anemia, or symptoms that wake you at night need medical evaluation, not just IBS treatment. If you think you may be having a medical emergency, call 911 or your local emergency number right away. This article discusses classes of medicines and clinical guidelines. Girl Playbook does not endorse any specific product, test, or provider.
Girl Playbook sells this book. It provides education and worksheets, not individualized medical care.
Sources
The research behind this article, in the order it’s cited. How we source our articles.
- American Journal of Gastroenterology (abstract via Europe PMC), 2021ACG Clinical Guideline: Management of Irritable Bowel Syndrome (opens in a new tab)abcde
- Gastroenterology (abstract via Europe PMC), 2022AGA Clinical Practice Guideline on the Pharmacological Management of Irritable Bowel Syndrome With Constipation (opens in a new tab)abcdef
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