Ozempic and Constipation: Why It Happens and How to Get Relief
Constipation is a common side effect of Ozempic and other GLP-1 medications. Here is why it happens and the steps that actually relieve it.
Constipation is one of the most common side effects of Ozempic and other GLP-1 medications (Wegovy, semaglutide). It happens for the same reason these drugs curb appetite — they slow down your digestive system — and for most people it eases over time. In the meantime, a few targeted steps make a real difference.
Why Ozempic causes constipation
GLP-1 medications slow gastric emptying — how quickly food leaves your stomach — and slow movement through the gut overall. That slowdown is part of how they work, but it also means waste moves more slowly through the colon, where it loses water and becomes harder to pass. Eating less (and therefore less fiber and fluid) on these medications can add to it.
Constipation is reported in roughly 5% of people using Ozempic for diabetes, and considerably higher — up to around a third — in people using semaglutide for weight management. It is often most noticeable in the early weeks.
How to relieve Ozempic constipation
Diet and habits:
- Soluble fiber is the most effective — psyllium (such as Metamucil) helps stool hold water and pass more easily
- Drink more water, especially as you increase fiber
- Move daily — even a 10 to 20 minute walk helps the gut contract
- Keep a routine — try to use the bathroom at the same time each day
Over-the-counter options (check with your provider):
- Polyethylene glycol (MiraLAX) — a gentle osmotic laxative
- Magnesium (e.g., magnesium oxide at bedtime) can help
- Stool softeners for short-term relief
When to call your provider
Reach out if you have no bowel movement for several days, severe or worsening abdominal pain, or constipation that does not respond to the steps above. Your provider may adjust your dose or recommend a specific regimen.
Seek urgent care for severe abdominal pain with bloating, vomiting, and an inability to pass gas or stool — rarely, GLP-1 medications have been linked to serious slowing of the bowel that needs prompt evaluation.
How long does it last?
For many people, constipation is worst in the first few weeks and improves as the body adjusts and as you build in fiber, fluids, and movement.
Frequently asked questions
Does Ozempic cause constipation?
Yes. By slowing how fast food moves through your stomach and gut, Ozempic and other GLP-1 medications commonly cause constipation, especially in the first weeks.
How do I relieve constipation from Ozempic?
Increase soluble fiber (psyllium), drink more water, move daily, and consider an OTC option like MiraLAX or magnesium. Talk to your provider if it persists.
How long does Ozempic constipation last?
It is usually worst early on and improves over the following weeks as your body adjusts and you add fiber, fluids, and activity.
What is the best laxative for Ozempic constipation?
Soluble fiber (psyllium) is a good first step; osmotic laxatives like polyethylene glycol (MiraLAX) or magnesium are commonly used. Confirm what is right for you with your provider.
Bottom line
Ozempic causes constipation by slowing digestion, and it is usually temporary. Soluble fiber, fluids, daily movement, and gentle OTC options relieve most cases. Call your provider for constipation that lasts several days or comes with severe pain.
This article is for general education and is not medical advice. Always follow your prescriber's guidance for your medication.
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Medical Disclaimer
This article is for informational purposes only and is not medical advice, diagnosis, or treatment. Always consult your physician or qualified healthcare provider before starting, stopping, or changing any medication, treatment, diet, or fitness program.
In a medical emergency, call 911 (or your local emergency number) immediately.
Never disregard professional medical advice or delay seeking it because of something you read here.
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