Semaglutide Vomiting: How Common, How Long It Lasts
Yes. Vomiting is listed in 3 of 3 semaglutide labels. The highest rate in each label runs from 8% on Rybelsus to 24% on Wegovy. Placebo in the Wegovy trials: 6%. Smaller, slower meals help most.
- Labels that list it
- 3 of 3
- Highest rate
- 24% Wegovy
- Lowest rate
- 8% Rybelsus
A quick look at Wegovy
Its half-life is about 1 week: after 7 d, half is gone, and after five half-lives (35 d), about 3% remains.
In STEP 1 at 68 weeks, people lost 14.9% of body weight, compared with 2.4% on placebo.
Monthly prices in US dollars include list prices and self-pay offers, each taken from the maker's price page.
Sources: FDA label (DailyMed), healthsystemtracker.org, prnewswire.com 1 2.
How often it shows up: Semaglutide against the placebo group
In the label trials, vomiting with Semaglutide is listed for each dose group. Within that same trial, the comparison group receives placebo.
| Medicine and dose | Vomiting | Placebo | More than placebo | People in the trials |
|---|---|---|---|---|
| Ozempic 0.5 mg | 5% | 2.3% | +2.7 points | Adults with type 2 diabetes |
| Ozempic 1 mg | 9.2% | 2.3% | +6.9 points | Adults with type 2 diabetes |
| Wegovy 2.4 mg | 24% | 6% | +18 points | Adults with obesity or overweight (weight management) |
| Wegovy 2.4 mg | 16% | 6% | +10 points | Adults with obesity (7.2 mg dose trials) |
| Wegovy 7.2 mg | 22% | 6% | +16 points | Adults with obesity (7.2 mg dose trials) |
| Wegovy 2.4 mg | 36% | 10% | +26 points | Children 12 and older with obesity |
| Rybelsus 7 mg | 6% | 3% | +3 points | Adults with type 2 diabetes |
| Rybelsus 14 mg | 8% | 3% | +5 points | Adults with type 2 diabetes |
Sources: Ozempic label (DailyMed), Wegovy label (DailyMed), Rybelsus label (DailyMed).
A comparison of Vomiting with semaglutide and other GLP-1s
Each label relies on its own trials, which involved different groups of people. Consider it a rough guide.
The table also lists the pill forms: Rybelsus, Foundayo.
| Medicine | Highest rate in the label | Dose group | Placebo | People in the trials |
|---|---|---|---|---|
 Wegovy | 24% | 2.4 mg | 6% | Adults with obesity or overweight (weight management) |
 Foundayo | 24% | 17.2 mg | 4% | Adults with obesity or overweight (weight management) |
 Saxenda | 15.7% | all doses | 3.9% | Adults with obesity or overweight (weight management) |
 Zepbound | 13% | 15 mg | 2% | Adults with obesity or overweight (weight management) |
| Byetta | 13% | all doses | 4% | Adults with type 2 diabetes |
 Trulicity | 12.7% | 1.5 mg | 2.3% | Adults with type 2 diabetes |
 Ozempic | 9.2% | 1 mg | 2.3% | Adults with type 2 diabetes |
 Mounjaro | 9% | 15 mg | 2% | Adults with type 2 diabetes |
 Victoza | 9% | 1.8 mg | 2% | Adults with type 2 diabetes |
 Rybelsus | 8% | 14 mg | 3% | Adults with type 2 diabetes |
Sources: Ozempic label (DailyMed), Wegovy label (DailyMed), Rybelsus label (DailyMed), Mounjaro label (DailyMed), Zepbound label (DailyMed), Foundayo label (DailyMed), Trulicity label (DailyMed), Saxenda label (DailyMed), Victoza label (DailyMed), Byetta label (DailyMed).
Source: FDA label (DailyMed).
Why it happens on semaglutide
These medicines slow how quickly the stomach empties. Food remains in your stomach longer, which can cause vomiting, especially after large or fatty meals.
Source: health.clevelandclinic.org
Ozempic label: what it states
About vomiting, the label says the following word for word:
“majority of the reported events occurred in patients who experienced gastrointestinal reactions leading to dehydration such as nausea, vomiting, or diarrhea [see Adverse Reactions (6.1)].”
Source: FDA label (DailyMed).
What helps, step by step
- Sip water often to prevent dehydration.
- After a meal, remain upright instead of lying down.
- Ask your prescriber about having a nausea medicine on hand.
- Eat smaller-sized meals, and stop eating once you feel full. These medicines slow down how fast the stomach empties.
- Eat slowly. Your brain needs time to recognize when you are full.
- Reduce fatty, greasy and sugary foods, because these often cause symptoms.
- Let your prescriber know if it does not ease. They may slow the increases in dose or suggest a different GLP-1.
Before taking any drugstore product, check it with the GLP-1 interactions checker.
Source: health.clevelandclinic.org