Semaglutide Constipation: How Common, How Long, What Helps
Yes. Constipation is listed in 3 of 3 semaglutide labels. The highest rate in each label runs from 5% on Ozempic to 24% on Wegovy. Placebo in the Wegovy trials: 11%. Smaller, slower meals help most.
- Labels that list it
- 3 of 3
- Highest rate
- 24% Wegovy
- Lowest rate
- 5% Ozempic
Wegovy: key facts
The half-life is about 1 week. Half remains after 7 d, while about 3% is left once five half-lives (35 d) have passed.
Over 68 weeks in STEP 1, the result was 14.9% of body weight, compared with 2.4% on placebo.
Monthly prices in US dollars include list prices and self-pay offers. Each price comes from the maker's price page.
Sources: FDA label (DailyMed), healthsystemtracker.org, prnewswire.com 1 2.
How often it occurs on semaglutide compared with placebo
Semaglutide constipation is listed in the label trials by dose group. The same trial uses placebo as its comparison group.
| Medicine and dose | Constipation | Placebo | More than placebo | People in the trials |
|---|---|---|---|---|
| Ozempic 0.5 mg | 5% | 1.5% | +3.5 points | Adults with type 2 diabetes |
| Ozempic 1 mg | 3.1% | 1.5% | +1.6 points | Adults with type 2 diabetes |
| Wegovy 2.4 mg | 24% | 11% | +13 points | Adults with obesity or overweight (weight management) |
| Wegovy 2.4 mg | 19% | 8% | +11 points | Adults with obesity (7.2 mg dose trials) |
| Wegovy 7.2 mg | 20% | 8% | +12 points | Adults with obesity (7.2 mg dose trials) |
| Wegovy 2.4 mg | 6% | 2% | +4 points | Children 12 and older with obesity |
| Rybelsus 7 mg | 6% | 2% | +4 points | Adults with type 2 diabetes |
| Rybelsus 14 mg | 5% | 2% | +3 points | Adults with type 2 diabetes |
These label sources provide the information: Ozempic label (DailyMed), Wegovy label (DailyMed), Rybelsus label (DailyMed).
Constipation on semaglutide vs other GLP-1s
Every label describes its own trials, which were run in separate groups of people. Treat it as a rough guide.
The pill forms in the table are Rybelsus and Foundayo.
| Medicine | Highest rate in the label | Dose group | Placebo | People in the trials |
|---|---|---|---|---|
 Foundayo | 27% | 9 mg | 9% | Adults with obesity or overweight (weight management) |
 Wegovy | 24% | 2.4 mg | 11% | Adults with obesity or overweight (weight management) |
 Saxenda | 19.4% | all doses | 8.5% | Adults with obesity or overweight (weight management) |
 Zepbound | 17% | 5 mg | 5% | Adults with obesity or overweight (weight management) |
| Byetta | 10% | all doses | 2% | Adults with type 2 diabetes (with insulin glargine) |
 Mounjaro | 7% | 15 mg | 1% | Adults with type 2 diabetes |
 Rybelsus | 6% | 7 mg | 2% | Adults with type 2 diabetes |
 Ozempic | 5% | 0.5 mg | 1.5% | Adults with type 2 diabetes |
 Victoza | 5% | 1.2 mg | 1% | Adults with type 2 diabetes |
 Trulicity | Listed, no rate given | – | – | – |
These label sources provide the information: Ozempic label (DailyMed), Wegovy label (DailyMed), Rybelsus label (DailyMed), Mounjaro label (DailyMed), Zepbound label (DailyMed), Foundayo label (DailyMed), Saxenda label (DailyMed), Victoza label (DailyMed), Byetta label (DailyMed).
Source: FDA DailyMed label.
Why it happens on semaglutide
These medicines slow how quickly the stomach empties. Constipation can follow when food remains longer, especially after large or fatty meals.
Source: health.clevelandclinic.org.
What the Ozempic label says
Here, the label mentions constipation in these exact words:
“Gastrointestinal: acute pancreatitis and necrotizing pancreatitis, sometimes resulting in death; ileus, intestinal obstruction, severe constipation including fecal impaction”
Source: FDA DailyMed label.
What helps, step by step
- Drink water throughout the day to keep your stools soft.
- Take a short walk. Moving helps the gut move.
- Place your feet on a small stool while you sit on the toilet.
- Ask about a drugstore laxative or stool softener.
- Have smaller meals and stop when you feel full. These medicines slow down how quickly your stomach empties.
- Eat slowly. Your brain needs time to notice when you are full.
- Let your prescriber know if it does not ease. They may slow the dose increases, or they may suggest another GLP-1.
Use the GLP-1 interactions checker before taking anything you get from the drugstore.
Source: health.clevelandclinic.org.