Mounjaro Sulfur Burps: How Common, How Long It Lasts
The Mounjaro label does not list sulfur burps as a side effect. What people mean by it: burps that smell or taste like rotten eggs. Labels list burping as eructation.
- In the label
- Not listed
- Most common in the label
- Nausea 18%
Mounjaro: key facts at a glance
The half-life is about 5 days. Half disappears after 5 d, while about 3% remains after five half-lives (25 d).
In the 40-week SURPASS-1 trial, people with type 2 diabetes lost 7.8 kg, compared with 1 kg on placebo.
In US dollars, monthly price points cover the list price and self-pay offers, each taken from the maker's price page.
Sources: FDA label (DailyMed), healthsystemtracker.org, pricinginfo.lilly.com.
What the Mounjaro label lists instead
The Mounjaro label does not list sulfur burps. The five side effects that appear most often are listed here.
| Side effect | Placebo | Mounjaro 5 mg | Mounjaro 10 mg | Mounjaro 15 mg | More than placebo, 15 mg |
|---|---|---|---|---|---|
| Nausea | 4% | 12% | 15% | 18% | +14 points |
| Diarrhea | 9% | 12% | 13% | 17% | +8 points |
| Decreased Appetite | 1% | 5% | 10% | 11% | +10 points |
| Vomiting | 2% | 5% | 5% | 9% | +7 points |
| Dyspepsia | 3% | 8% | 8% | 5% | +2 points |
Taken from the Mounjaro label (DailyMed).
Other GLP-1s and sulfur burps
Each label covers its own trials, which included different groups of people. Consider it a rough guide.
The table also includes pill forms: Foundayo.
| Medicine | Highest rate in the label | Dose group | Placebo | People in the trials |
|---|---|---|---|---|
 Foundayo | 8% | 9 mg | 1% | Adults with obesity or overweight (weight management) |
 Wegovy | 7% | 2.4 mg | Not reported | Adults with obesity or overweight (weight management) |
 Zepbound | 5% | 10 mg | 1% | Adults with obesity or overweight (weight management) |
 Saxenda | 4.5% | all doses | 0.2% | Adults with obesity or overweight (weight management) |
 Ozempic | Not by this name | – | – | – |
 Rybelsus | Not by this name | – | – | – |
| Mounjaro | Not by this name | – | – | – |
 Trulicity | Not by this name | – | – | – |
 Victoza | Not listed | – | – | – |
| Byetta | Not by this name | – | – | – |
References: Wegovy label (DailyMed), Zepbound label (DailyMed), Foundayo label (DailyMed), Saxenda label (DailyMed).
From the FDA label (DailyMed).
What may explain it?
They cause your stomach to empty more slowly. Because food stays in your stomach longer, sulfur burps may appear, most often after you eat big or fatty meals.
Source: health.clevelandclinic.org.
What helps, step by step
- Eat less sugary food and highly processed food.
- Foods high in fiber should be limited right after your dose.
- Choose smaller meals and stop eating once you feel full. Your stomach empties more slowly when you take these medicines.
- Eat slowly. Your brain needs time to recognize when you are full.
- Go easy on fatty, greasy and sugary foods, which often bring symptoms on.
- If it does not ease, tell your prescriber. Your prescriber may slow the pace of dose increases or suggest a different GLP-1.
Before taking anything from the drugstore, use the GLP-1 interactions checker.
Source: health.clevelandclinic.org.