What Is the First-Line Treatment for Functional Constipation?
Clinical scenario
Adults with functional constipation who are initiating structured evidence-based management — particularly those with low habitual dietary fibre intake — and require a first-line therapeutic approach.
Treatment approach
First-line management is centred on dietary fibre supplementation, with particular relevance for patients with low habitual fibre intake. Adequate hydration should be maintained alongside fibre therapy. The specific supplement, evidence grading, and complete regimen details are available in the full protocol.
Clinical goals
Increase in spontaneous bowel movements per week and global relief of constipation symptoms.
References
DOI: 10.1053/j.gastro.2023.03.214
- In adults with CIC, the panel suggests the use of fiber supplementation over management without fiber supplements (conditional recommendation, low certainty of evidence).
- Fiber supplements can be used as first-line therapy for CIC, particularly for individuals with low dietary fiber intake.
- Adequate hydration should be encouraged with the use of fiber.
- Based on the meta-analysis of data from 3 studies, the use of psyllium may lead to an increase in SBMs per week (MD 2.32, CI 0.86–3.79).
- Combined data from 2 studies showed that the use of psyllium may increase global relief symptoms (RR 1.86, CI 1.49–2.30), but there was little to no difference in stool consistency (MD −1.08, CI −1.33 to 0.83).
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