Drug facts

Semaglutide and pancreatitis

Quick answer

Both the Ozempic and the Wegovy labels warn about acute pancreatitis and describe it the same way: persistent or severe abdominal pain, sometimes radiating to the back, with or without nausea or vomiting. If it is suspected, the label says to stop the drug and contact the prescriber. In the Wegovy weight-reduction trials it was confirmed in 4 people on semaglutide and 1 on placebo.

The symptoms the label lists1

Section 5.2 of the Wegovy prescribing information reads as follows. The Ozempic label’s section 5.2 is the same text with its own brand name.

Acute pancreatitis, including fatal and non-fatal hemorrhagic or necrotizing pancreatitis, has been observed in patients treated with GLP-1 receptor agonists, including WEGOVY [see Adverse Reactions (6)]. After initiation of WEGOVY, observe patients carefully for signs and symptoms of acute pancreatitis, which may include persistent or severe abdominal pain (sometimes radiating to the back), and which may or may not be accompanied by nausea or vomiting.

The Medication Guides put it in plainer words2. Wegovy’s describes “severe pain in your stomach area (abdomen) that will not go away, with or without nausea or vomiting. Sometimes you may feel the pain from your abdomen to your back.” Ozempic’s is nearly identical, but it reads “with or without vomiting,” leaving nausea out.3

The pain is the symptom both labels lead with. Nausea and vomiting are described as possible companions, not requirements, and that matters on a drug where nausea alone was reported by 44% of participants on Wegovy 2.4 mg.

What the label says to do1

To prescribers, section 5.2 says: “If pancreatitis is suspected, discontinue WEGOVY and initiate appropriate management.” Section 17, which sets out what patients should be told, says to instruct them “to discontinue WEGOVY promptly and contact their physician if pancreatitis is suspected.”

The Wegovy Medication Guide gives the patient-facing version: “Stop using WEGOVY and call your healthcare provider right away” if the pain described above occurs. The Ozempic guide gives the same instruction for Ozempic. Those are the labels’ words, reported here; this page adds nothing to them.

How often it was confirmed4

Section 5.2 carries no rate. The counts are in section 6.1, which reports only cases confirmed by adjudication, a formal review of each suspected case:

Acute pancreatitis confirmed by adjudication in the labels’ trials.
TrialsSemaglutideComparator
Wegovy, adults, weight reduction4 people (0.2 per 100 patient-years)1 on placebo (under 0.1)
Ozempic, glycemic control7 people (0.3 per 100 patient-years)3 on comparators (0.2)

A patient-year is one person followed for one year, so 0.2 per 100 patient-years means about two confirmed cases for every 1,000 people treated for a year. The Wegovy label adds one further confirmed case in another trial. The Ozempic label calls its comparison group “comparator-treated”; its glycemic control trials compared Ozempic with placebo, sitagliptin, exenatide and insulin glargine.

After approval, the label lists “acute pancreatitis and necrotizing pancreatitis, sometimes resulting in death” among reports received from use of semaglutide. Those reports are voluntary, and the label says they cannot establish a rate or a cause.

Enzyme rises without pancreatitis4

The labels also report pancreatic enzyme changes that were not pancreatitis. In the Wegovy weight-reduction trials, amylase rose by a mean of 15% to 16% from baseline and lipase by 39%, changes not seen on placebo. In the Ozempic trials the rises were 13% and 22%. The Wegovy label says the clinical significance of these elevations “is unknown in the absence of other signs and symptoms of pancreatitis.”

The gallbladder warning beside it1

Section 5.3 is the next warning in the label: acute gallbladder disease. Treatment is “associated with an increased occurrence of cholelithiasis and cholecystitis,” meaning gallstones and gallbladder inflammation.

Gallbladder events in the Wegovy weight-reduction trials.
Event and groupSemaglutidePlacebo
Gallstones, adults, injection1.6%0.7%
Gallstones, adults, tablet2.5%1%
Gallbladder inflammation, adults, injection0.6%0.2%
Gallstones, ages 12 and older3.8%0%
Gallbladder inflammation, ages 12 and older0.8%0%

The label notes that substantial or rapid weight loss can raise the risk of gallstones on its own, but says the incidence was higher on semaglutide than placebo “even after accounting for the degree of weight loss.” The Ozempic label reports gallstones in 1.5% at 0.5 mg and 0.4% at 1 mg, and none on placebo3.

The Wegovy Medication Guide says some gallbladder problems need surgery, and lists the symptoms it wants reported: pain in the upper stomach (abdomen), yellowing of the skin or eyes (jaundice), fever, and clay-colored stools2.

What the label does not say1

The prescribing information never uses the phrase “history of pancreatitis,” and it states no rule about people who have had pancreatitis before. What it does have is a line in the Medication Guide asking patients to tell their healthcare provider before starting if they “have or have had problems with your pancreas or kidneys”2. What follows from that is a prescriber’s judgment, not something the label, or this page, settles.

What none of this covers

On the label — Wegovy / Ozempic

These counts come from adjudicated cases in controlled trials of the approved products, plus reports collected after approval.

In a compounded vial

No compounded preparation has run a trial, and the label’s case counts were not measured on one. The warning itself describes a drug class, GLP-1 receptor agonists, not a particular pen. What FDA has said about compounded semaglutide →

Nothing here is medical advice. It reports the approved labels’ warnings and their own instructions, quoted and attributed, and adds none of its own. The other warnings in section 5 are on side effects, and the dehydration warning is on diarrhea. See the medical disclaimer.

Sources

  1. FDA prescribing information for WEGOVY (semaglutide), sections 5.2, 5.3 and 17, revision 6/2026 DailyMed
  2. FDA-approved Medication Guide for WEGOVY (semaglutide), revision 6/2026 DailyMed
  3. FDA prescribing information for OZEMPIC (semaglutide) injection, sections 5.2, 5.9 and 6.1, revision 5/2026, and its Medication Guide, revision 1/2025 DailyMed
  4. FDA prescribing information for WEGOVY (semaglutide), sections 6.1 and 6.2, revision 6/2026 DailyMed