Docusate sdodium

Docusate sodium is a stool softener that works poorly as a laxative, and the best head-to-head trial found a cheap fiber beat it.

For chronic constipation, the honest comparison is not docusate versus nothing. It is docusate versus psyllium, a soluble fiber. In a two-week randomized, double-blind trial of 170 adults with chronic constipation, psyllium 5.1 g twice daily beat docusate 100 mg twice daily on nearly every objective measure: stool water content rose 2.33% on psyllium versus 0.01% on docusate [1], bowel movements were 3.5 per week versus 2.9 [1], and total stool output was 359.9 g/week versus 271.9 g/week [1]. The gap widened over the two weeks, with psyllium's stool-water trend 3.34 times steeper [1]. That is a fiber outperforming the drug it is supposed to replace.

The other two records do not test docusate as a constipation treatment in ordinary people. One is a retrospective database study of critically ill sepsis patients, where docusate tracked with lower 28-day mortality than lactulose [2]; that is a sick, hospitalized population and cannot be stretched to a healthy person with constipation. The other added PEG3350 to routine docusate after pelvic surgery and found no faster first bowel movement [3], meaning docusate itself was never shown to be the active ingredient.

No record here reports docusate's long-term safety, dependence, or electrolyte effects. This retrieval is a sample of one search, not the literature.

My call: for ordinary chronic constipation, try psyllium first; docusate is a weak stool softener with no trial here showing it beats fiber. Confidence: moderate.