GLP-1 Heartburn: Why Ozempic, Wegovy and Zepbound Cause Acid Reflux and What Helps
Written by Naurah Gaspard, DNP, FNP-C, FNP-BC · Medically reviewed by Cherlie Joseph, MSN, FNP-BC · Updated November 2026
GLP-1 medicines such as semaglutide (Ozempic, Wegovy) and tirzepatide (Mounjaro, Zepbound) slow how quickly the stomach empties. Food stays in the stomach longer, which can push acid up into the esophagus. Heartburn, indigestion and burping are listed side effects, and smaller, lower-fat meals with nothing late at night usually help.
In this guide
Why GLP-1 medicines can cause heartburn
Part of how GLP-1 medicines curb appetite is by slowing gastric emptying. That fuller-for-longer feeling is helpful for weight, but a stomach that holds food longer has more chance to reflux. Nausea, vomiting and burping, which are also common on these medicines, can add to the irritation.
The prescribing information for Wegovy and Zepbound lists gastroesophageal reflux disease, dyspepsia (indigestion) and eructation (belching) among reported side effects. Symptoms are often worse in the first weeks and right after a dose increase.
What the research shows
A 2025 study in Annals of Internal Medicine followed adults with type 2 diabetes in the UK who started a GLP-1 medicine or an SGLT-2 inhibitor. Over about three years, GLP-1 users had a 27% higher relative risk of a new GERD diagnosis. In absolute terms, that worked out to roughly 0.7 extra cases per 100 people. Complications such as Barrett’s esophagus were rare but also more common.
The authors called for more research, including in people taking these medicines for weight loss, and noted the risk should be weighed against the proven benefits of the drug class.
On a GLP-1 or reflux medicine and running low?
$79 refill review by a nurse practitioner licensed in your state. Adults 18+ in FL, NM, OR and WA.
Request a medication refill →Practical ways to ease GLP-1 heartburn
- Eat smaller meals and stop at the first sign of fullness. Your stomach empties more slowly now, so portions that used to be fine may be too much.
- Go easy on fried, greasy and very rich foods, which slow emptying even more.
- Avoid lying down for 2 to 3 hours after eating, and raise the head of your bed if symptoms hit at night.
- Limit alcohol, carbonated drinks and late-night snacking.
- Sip fluids between meals rather than drinking a lot with food.
- Track timing. If heartburn peaks a day or two after your injection or after a dose increase, share that with your provider.
Medicines that may help, and when to adjust
Antacids can ease occasional symptoms. H2 blockers such as famotidine, or a proton pump inhibitor such as omeprazole, may be used for more frequent heartburn. Over-the-counter PPIs are labeled for 14 days at a time, so ongoing use should be discussed with a provider.
If heartburn is persistent, your provider may suggest staying on your current dose longer before increasing, or adjusting the dose. Do not change your GLP-1 dose on your own. A provider will review what is appropriate for you.
Get in-person care or call 911 if you have:
- Severe belly pain that does not go away, with or without pain spreading to the back (possible pancreatitis)
- Pain in the upper right belly, fever or yellowing of the skin or eyes (possible gallbladder problem)
- Vomiting that keeps you from holding down fluids
- Chest pain, pressure or shortness of breath
- Trouble swallowing, vomiting blood or black stools
Frequently asked questions
Does Ozempic cause acid reflux?
It can. Semaglutide slows stomach emptying, and reflux, indigestion and burping are reported side effects of semaglutide products. Many people find symptoms ease as their body adjusts.
Does Zepbound heartburn go away?
For many people, heartburn is worst in the first weeks and after dose increases, then improves. If it persists, talk with your provider about meal changes, acid-reducing medicine or your dosing schedule.
Can I take omeprazole with Wegovy?
There is no known major interaction, and PPIs are commonly used alongside GLP-1 medicines. Tell your provider and pharmacist about everything you take so they can check for you.
Sources
- AGA News: New data tie GLP-1 therapies to GERD (summary of Annals of Internal Medicine study, 2025)
- ACG Clinical Guideline for the Diagnosis and Management of GERD (Katz et al., 2022)
- NIDDK: Acid Reflux (GER & GERD) in Adults
Keep reading
- GLP-1 nausea: tips that help
- GLP-1 side effects explained
- Foods to avoid on a GLP-1
- GERD diet: foods to avoid and foods that help
- Browse all conditions and treatments A to Z
On a GLP-1 or reflux medicine and running low?
$79 refill review by a nurse practitioner licensed in your state. Adults 18+ in FL, NM, OR and WA.
Request a medication refill →
Naurah Gaspard, DNP, FNP-C, FNP-BC
Board-certified family nurse practitioner licensed in Florida, New Mexico, Oregon and Washington, caring for adults online at OurTopClinic. Meet our providers.
This article is for general education and is not a substitute for medical advice. Treatment, including any prescription, is decided by a licensed provider after reviewing your health history. OurTopClinic is not for emergencies; if you have a medical emergency, call 911. OurTopClinic serves adults located in Florida, New Mexico, Oregon and Washington. Learn more at ourtopclinic.com.
