If you’ve been constipated for weeks, months, or even years, chances are someone has told you to “just eat more fibre.”


But here’s the problem: when your gut is backed up, adding more fibre is like piling traffic onto a jammed highway. Nothing moves- and the pressure builds.


That uncomfortable, stretched-out feeling that comes after a “healthy” high-fibre meal? That’s most likely BACK UP BLOAT.


And before fibre, routines, or probiotics can do their job, your system often needs a "reset". That’s where laxatives or "pro-motility" medications come in.


Why Fibre Alone Often Isn’t Enough


When stool has been sitting in the colon for a long time, your gut’s natural reflexes- like the gastrocolic reflex which signals the colon to move after eating- can "go quiet". In this state, fibre often isn't enough to fix the problem; it simply adds bulk (and discomfort) to a system that’s already full.


That’s why the first step toward predictable relief is to create space and movement.


A short, strategic course of laxatives (or pro-motility medication) can:

  • Clear out retained stool
  • Re-awaken motility reflexes
  • Reduce backup bloat and abdominal pressure
  • Create the foundation for fibre, food, and routines to actually work


Laxatives Are Tools, Not Failures


Laxatives aren’t a “last resort.” They’re part of evidence-based care recommended by the AGA, ACG, and Rome Foundation for chronic constipation and other Disorders of Gut–Brain Interaction (DGBIs).


Think of them like reading glasses: they don’t “fix” your eyes, but they make it possible to see clearly and function well. Laxatives do the same for your gut: they don’t cure constipation, but they create the conditions for movement so that motility-supportive daily routines, gut–brain communication tools, fibre strategies, and pelvic floor retraining can actually work.


Some people only need them short-term. Others- especially those with slower transit- may need ongoing or prescription support. Either way, they’re not a sign of dependence or failure. They’re often a part of a plan that gives you back your quality of life. 


When and How Laxatives Are Used in Chronic Constipation Care


In evidence-based constipation management, laxatives and medications are used in two key ways:

  1. As part of an initial clear-out (aka. "reset"): When stool retention and backup bloat are present, the first goal is to clear space so the gut can respond again. A structured clear-out- using osmotic and, if needed, stimulant laxatives- helps reset the system and restore movement. I walk through how to safely approach this inside my Gut Rhythm Starter Plan, which teaches how to move from relief to retraining with confidence.
  2. As ongoing support when motility needs help: For many people with DGBIs, the colon’s natural motility remains sluggish even after routines, fibre, and nervous system regulation are in place. In these cases, long-term laxative or prescription medication use may be part of sustainable management.


Keep in mind, this isn’t one-size-fits-all. The right fit depends on your constipation subtype, medical history, and how your body responds. Finding that fit takes time and collaboration with a licensed ND or MD who can monitor progress and ensure long-term safety.


Laxatives fit within a broader plan that includes meal timing, motility cues, and gut-brain support. When used thoughtfully, they’re what help transform short-term relief into long-term predictability and confidence with your gut.

(Side note: This is the foundation I teach inside the Constipation Confidence Course- where we take these concepts step by step so you can understand how to apply them in real life.)


The Main Types of Laxatives and Medications


Most people start with over-the-counter (OTC) options, which are safe and effective when used consistently and adjusted for dose and tolerance. These form the foundation of constipation care and should be tried first before considering prescriptions.

  • Osmotic laxatives (PEG 3350, magnesium citrate/oxide)- pull water into the colon to soften stool and make it easier to pass.
  • Stimulant laxatives (senna, bisacodyl)- stimulate the colon muscles to move stool along when osmotics alone aren’t enough.
  • Stool softeners (docusate sodium)- help hydrate stool and make bowel movements more comfortable, often used as an add-on.


If symptoms persist despite consistent use of OTC options, your provider may recommend prescription medications for ongoing motility support:

  • Secretagogues (lubiprostone, linaclotide, plecanatide) increase intestinal fluid and promote smoother passage of stool.
  • Prokinetics (prucalopride, tegaserod) target the gut’s nerve and muscle activity to enhance coordinated motility and accelerate transit.


These prescription therapies are safe when prescribed and monitored, and can be used long-term in chronic constipation- particularly for people with Disorders of Gut–Brain Interaction (DGBIs) who need sustained motility support.


Relief Isn’t About Willpower- It’s About Strategy


Too many people suffer for years because they’ve been told that relying on a laxative means their body is “broken.” In reality, these tools help bridge the gap while deeper changes take hold (when possible).


If you’re ready to learn how to use these medications safely and understand where they fit within a full, evidence-based plan for constipation relief you can start by grabbing the Gut Rhythm Starter Plan or by booking a Gut Clarity Call (BC residents only). 


References:

Chang L, Chey WD, Imdad A, et al. American Gastroenterological Association–American College of Gastroenterology Clinical Practice Guideline: Pharmacological Management of Chronic Idiopathic Constipation. Gastroenterology. 2023;164(7):1086–1106. https://doi.org/10.1053/j.gastro.2023.03.214


Steele SR, Paquette IM, Bohl JL, et al. The American Society of Colon and Rectal Surgeons Clinical Practice Guidelines for the Evaluation and Management of Constipation. Dis Colon Rectum. 2024;67(10):1101–1124. https://doi.org/10.1097/DCR.0000000000003430


World Gastroenterology Organisation (WGO). Global Guideline: Constipation – A Global Perspective. 2025. https://www.worldgastroenterology.org/UserFiles/file/guidelines/constipation-english-2025.pdf


American College of Gastroenterology (ACG) & American Gastroenterological Association (AGA). Chronic Idiopathic Constipation: Management Guideline Summary. Guideline Central. 2024. https://www.guidelinecentral.com/guideline/3975470


American College of Gastroenterology (ACG) & American Gastroenterological Association (AGA). Diagnosis of Constipation: Clinical Guideline Comparison Tool. Guideline Central. 2023. https://www.guidelinecentral.com/guideline/2836451