Teasdale, Emma, Everitt, Hazel, Alderson, Sarah, Ford, Alexander C., Hanney, James, Chaddock, Matthew, Williamson, Emmajane, Cook, Heather, Farrin, Amanda J, Fernandez, Catherine, Guthrie, Elspeth, Hartley, Suzanne, Herbert, Amy, Howdon, Daniel, Muir, Delia, Newman, Sonia, Ow, Pei Loo, Ridd, Matthew, Taylor, Christopher M, Thornton, Ruth, Wright-Hughes, Alexandra and Bishop, Flis (2025) Low-dose amitriptyline for irritable bowel syndrome (IBS): a qualitative study of patients’ and GPs’ views and experiences. British Journal of General Practice. (doi:10.3399/BJGP.2024.0303).
Abstract
Background: irritable bowel syndrome (IBS) can cause troublesome symptoms impacting patients’ quality of life and incur considerable health service resource use. Guidelines suggest low-dose amitriptyline for IBS as second line treatment, but this is rarely prescribed in primary care.
Aim: to explore patients’ and general practitioners’ (GPs) views and experiences of using low-dose amitriptyline for IBS.
Design and setting: qualitative interview study with patients and GPs in England, nested within the ATLANTIS trial of low-dose amitriptyline versus placebo (ISRCTN48075063).
Methods: semi-structured telephone interviews with 42 patients at 6-months post-randomisation, 19 patients again at 12-months post-randomisation, and 16 GPs. Reflexive thematic analysis was used to analyse patient and GP data separately, then together, to identify unique and cross-cutting themes.
Results: we found concerns about amitriptyline being an antidepressant, medicalising IBS, and side-effects. Perceived benefits included the low and flexible dose, ease of treatment, familiarity of amitriptyline and its potential to offer benefits beyond IBS symptom relief. These concerns and perceived benefits were expressed in the context of desire for a novel approach to IBS: GPs were keen to offer more options for IBS and patients sought a cure for their symptoms.
Conclusions: patients and GPs felt the potential benefits from trying low-dose amitriptyline for IBS outweighed their concerns. When offering low-dose amitriptyline for IBS, GPs could address patient concerns about taking an antidepressant for IBS, highlighting the low and flexible dosage and other potential benefits of amitriptyline such as improved sleep.
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