Sulfur Burps on Wegovy (Semaglutide 2.4 mg): Week-by-Week Timeline of What to Expect
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Key numbers
- 0.25 mgStarting Wegovy dose, given once weekly for the first 4 weeksSource: dailymed.nlm.nih.gov, as cited 2026-10-30
- 2.4 mgRecommended maintenance dose of Wegovy, taken once weeklySource: dailymed.nlm.nih.gov, as cited 2026-10-30
- 4.1%Adults on Wegovy injection with severe gastrointestinal reactions, vs 0.9% on placeboSource: dailymed.nlm.nih.gov, as cited 2026-10-30
At a glance
- Burping rate in trials / 7% on Wegovy 2.4 mg vs under 1% on placebo, up to 68 weeks [1]
- Published week-by-week timeline / None found
- Dose schedule / 0.25 mg weeks 1-4, 0.5 mg weeks 5-8, 1 mg weeks 9-12, 1.7 mg weeks 13-16, maintenance from week 17 [1]
- Highest adult dose / 2.4 mg recommended; up to 7.2 mg weekly after at least 4 weeks on 2.4 mg [1]
- Severe GI reactions / 4.1% vs 0.9% on placebo [1]
- Stopped treatment for side effects / 6.8% vs 3.2%, mostly nausea, vomiting and diarrhea [1]
- Label on gastroparesis / Wegovy is not recommended in patients with severe gastroparesis [1]
What the Wegovy label records about burping
The Wegovy 2.4 mg injection safety results pool three placebo-controlled trials of up to 68 weeks, with 2,116 adults on Wegovy and 1,261 on placebo. In that pooled group, eructation was reported by 7% on Wegovy versus under 1% on placebo [1]. Eructation also appears in the label's list of the most common adverse reactions, meaning those reported by 5% or more of patients [1].
That 7% is a single figure covering the entire treatment period. The label does not break it down by month, by dose step or by how long the burping lasted in the people who had it.
Discontinuation for any adverse reaction was 6.8% on Wegovy versus 3.2% on placebo, and the most common reasons were nausea (1.8% vs 0.2%), vomiting (1.2% vs 0%) and diarrhea (0.7% vs 0.1%) [1].
What people on Reddit report
People on Wegovy who describe sulfur burps and what they tried. Their accounts disagree on the cause, from not eating enough to eating too much, and on what helped.
For me, it was a sign I wasn't eating enough. When I forced myself to eat more, the burps usually go away.Read the source discussion
I've only had sulfur burps 3 times since starting. And I only have sulfur burps when I overeat.Read the source discussion
I had them for about a week, I think they came from drinking too many protein shakes. The only thing that really helped control them was constantly drinking water. After a week they kind of just faded away.Read the source discussion
Had sulfur burps from eating too much protein. What helped was small amount of boiled potato & PEPTOBISMOL.Read the source discussion
I started getting these when I upped my dose to 1.0. I was using pepto but my doc prescribed simethicone, basically gas-x, instead.Read the source discussion
A Genesis Lifestyle Medicine presenter on the causes and remedies for sulfur burps
The presenter argues that sulfur burps on Wegovy or compounded semaglutide are unpleasant but manageable and not permanent. They attribute the rotten egg smell mainly to shifts in gut bacteria, slower stomach emptying that lets food ferment, and high-sulfur foods such as eggs, meat, and cruciferous vegetables. Their recommended remedies include a balanced diet, smaller and more frequent meals, steady hydration, herbal teas such as ginger or peppermint, and avoiding swallowing air by eating slowly and skipping straws, gum, and smoking. They also promote the channel's own CoreBiotic probiotic and advise talking to a provider if burps persist or if other medications may be contributing.
Who is speaking?
Genesis Lifestyle Medicine. Presenter on the Genesis Lifestyle Medicine channel, as described on the channel Background
The dates that are documented: the dose steps
The only part of this story with dates attached is the dosing schedule. Wegovy injection starts at 0.25 mg once weekly for 4 weeks and titrates every 4 weeks: 0.5 mg for weeks 5 through 8, 1 mg for weeks 9 through 12, 1.7 mg for weeks 13 through 16, then maintenance from week 17 [1]. The recommended maintenance dose is 2.4 mg weekly; adults who tolerate 2.4 mg for at least 4 weeks and need more weight loss may move to a maximum of 7.2 mg weekly [1].
These are calendar landmarks only; the label does not tie burping to any of these steps [1].
How fast the stomach empties: what was measured
The label states that Wegovy delays gastric emptying and may affect absorption of oral medicines [1]. A direct measurement comes from a randomized, double-blind, placebo-controlled crossover trial of 30 people with obesity, in which semaglutide was dose-escalated to 1.0 mg weekly. After 12 weeks, gastric emptying in the first hour after a standardized meal was delayed with semaglutide (estimated treatment ratio 0.73, 95% CI 0.61 to 0.87), while emptying measured over 5 hours was not statistically different from placebo [2]. That trial used 1.0 mg, not 2.4 mg, and it did not look at burping.
What the label flags
- Severe gastrointestinal reactions were reported in 4.1% of adults on Wegovy injection versus 0.9% on placebo, and the label says Wegovy is not recommended in patients with severe gastroparesis [1].
- Postmarketing reports listed in the label include ileus, intestinal obstruction and severe constipation with fecal impaction [1].
- For pancreatitis, the label says to discontinue Wegovy if pancreatitis is suspected, and describes persistent or severe abdominal pain, sometimes radiating to the back, which may or may not come with nausea or vomiting [1].
- Gallbladder disease is more frequent on Wegovy: cholelithiasis 1.6% vs 0.7% and cholecystitis 0.6% vs 0.2% in the adult injection trials [1].
- Taken together, any gastrointestinal reaction was reported by 73% of adults on Wegovy versus 47% on placebo [1].
Questions worth asking
Frequently asked questions
When do sulfur burps start after the first Wegovy dose?
Do sulfur burps stop once the 2.4 mg maintenance dose is reached?
Are sulfur burps a sign of a serious problem?
What does the label say about missed Wegovy doses?
What people actually ask
How long will sulfur burps last with Wegovy?
No published timeline was found, so how long sulfur burps last is not established. Neither the label nor the trials say when burping starts, peaks or stops. The only figure is that eructation (burping) was reported by 7% of adults on Wegovy 2.4 mg versus under 1% on placebo, in trials running up to 68 weeks.
Do sulfur burps mean pancreatitis?
The text does not establish that sulfur burps mean pancreatitis. Burping is listed as a common reaction, while the label's pancreatitis warning centers on persistent or severe abdominal pain, sometimes radiating to the back, which may or may not come with nausea or vomiting. If pancreatitis is suspected, the label says to discontinue Wegovy.
Can GLP-1 medication cause sulfur burps?
Yes, the label records eructation (burping) as a reaction on Wegovy. It was reported by 7% of adults on Wegovy 2.4 mg versus under 1% on placebo, across three placebo-controlled trials of up to 68 weeks. The label does not break this down by month or by dose step.
References
- U.S. National Library of Medicine, DailyMed. Wegovy injection and Wegovy tablets (Novo Nordisk) prescribing information. Wegovy injection and Wegovy tablets (Novo Nordisk) label
- Hjerpsted JB, Flint A, Brooks A, Axelsen MB, Kvist T, Blundell J. Semaglutide improves postprandial glucose and lipid metabolism, and delays first-hour gastric emptying in subjects with obesity. Diabetes Obes Metab. 2018;20(3):610-619. Semaglutide improves postprandial glucose and lipid metabolism, and delays first-hour gastric emptying in subjects with obesity
- Reddit participants. Sulfur burps on Wegovy 🤢 (r/WegovyWeightLoss). Accessed 2026-11-10.
- Genesis Lifestyle Medicine. Wagovy Sulfur Burps Causes And Remedies. Accessed 2026-11-10.