GLP-1 lawsuits: what courts have and have not decided
Yes. Federal lawsuits against Novo Nordisk and Eli Lilly are gathered in one court in Pennsylvania: 4,082 pending over stomach injuries (MDL 3094) and 278 over a kind of vision loss (MDL 3163), as counted on Nov 2, 2026. They are allegations. In the 5 published rulings we read, the newest dated May 18, 2026, the court has not decided that these medicines caused these injuries. A compounded version is not among the eight medicines named in MDL 3094.
Read Nov 6, 2026 in the opinions published on GovInfo. This is not legal advice. We take no money from law firms and pass no leads to them.
What is alleged
Claims made by the people suing. None of this is a finding.
MDL 3094, stomach injuries. US District Court for the Eastern District of Pennsylvania, Judge Karen Spencer Marston. The court says each plaintiff claims that “they suffered gastrointestinal symptoms and/or injuries, such as “debilitating cyclical vomiting,” gastroparesis, ileus, intestinal obstruction, gallbladder injury, vitamin deficiency, Wernicke’s Encephalopathy, ischemic bowel, and necrotizing pancreatitis.” The medicines at issue: “Ozempic, Wegovy, Rybelsus, Victoza and Saxenda, which are manufactured by Novo; and Trulicity, Mounjaro, and Zepbound, which are manufactured by Lilly.” The opinion. Pending on Nov 2, 2026: 4,082 cases, 4,196 filed in all. The panel's count
MDL 3163, vision loss. US District Court for the Eastern District of Pennsylvania. A separate set of cases over NAION, a rare cause of sudden vision loss: 278 pending on Nov 2, 2026. The court's list. What regulators and studies say about it
What the court has decided
Every published ruling we read is about what evidence counts and which claims go on. None decides that a medicine caused an injury.
May 18, 2026 · Doc. 672
Lilly asked to limit one of the plaintiffs' expert witnesses to the opinions in his report. The plaintiffs said they had no intention of going beyond it, and the court denied the motion.
“Accordingly, Lilly’s Motion is denied.”
Oct 23, 2025 · Doc. 512
Plaintiffs asked for slides from the makers' animal studies. The court said no.
“Plaintiffs’ request for animal histopathology slides or digital scans of the animal histopathology slides is DENIED.”
Aug 15, 2025 · Doc. 468
What a gastroparesis claim has to show. The diagnosis must rest on a gastric emptying test, so one made without that test does not count.
“Any Plaintiff claiming to suffer (or have suffered) from gastroparesis, must show that their diagnosis is based on a properly performed gastric emptying study (scintigraphy, breath test, or WMC).”
Aug 15, 2025 · Doc. 465
The makers asked to dismiss the claims. Some go on, and others were dismissed with leave to rewrite them. The court says the makers deny the allegations and that at this step it must take them as true, so this does not decide who is right.
“Defendants’ motion to dismiss (Doc. No. 329) is denied in part and granted in part.”
Oct 17, 2024 · Doc. 277
Plaintiffs asked to see the makers' marketing campaigns at this early stage. The court said no, and had said this could still matter later in the case.
“it is ORDERED that the motion is DENIED.”
Compounded versions
Not among the eight medicines named in MDL 3094. These suits are between companies, as reported in the press.
- Eli Lilly sued Strive Pharmacy and Empower Pharmacy, saying they mass-produce altered versions of tirzepatide rather than personalize them. Strive called the suit a case of a large drug maker overstepping legitimate rules and said it will defend itself. Empower said it is "committed to offering these life-changing formulations." CNBC on NBC Los Angeles, April 2025
- Strive sued Lilly and Novo Nordisk in federal court in Texas, alleging a “coordinated effort to suppress competition and limit patient access to lawful compounded GLP-1RA medications”. Novo says: “The claims in this litigation are without merit”. Lilly says the suit is “wrong, on both the facts and law”. Pharmaceutical Technology, January 2026
Common questions
Is there a lawsuit about Ozempic, Wegovy, Mounjaro or Zepbound?
Yes. The court names the medicines at issue: "Ozempic, Wegovy, Rybelsus, Victoza and Saxenda, which are manufactured by Novo; and Trulicity, Mounjaro, and Zepbound, which are manufactured by Lilly." It describes each plaintiff as claiming that "they suffered gastrointestinal symptoms and/or injuries, such as “debilitating cyclical vomiting,” gastroparesis, ileus, intestinal obstruction, gallbladder injury, vitamin deficiency, Wernicke’s Encephalopathy, ischemic bowel, and necrotizing pancreatitis." These are claims, not findings. The court's opinion
How many GLP-1 lawsuits are there?
On Nov 2, 2026 the federal panel that tracks these cases counted 4,082 pending in MDL 3094, the stomach injury cases (4,196 filed in all), and 278 in MDL 3163, the vision loss cases. In August 2025 the court had written that "there are more than 2600 cases included in the MDL". The panel's count
Has anyone won an Ozempic lawsuit?
We found no verdict or finding of that in the rulings we read. So far they settle what evidence counts and which claims go on. They are not the full record of the case, and they are not a prediction either way.
Is there a lawsuit about compounded semaglutide or tirzepatide?
Not in MDL 3094, whose eight named medicines are all brands. The suits we read that involve compounded versions are companies suing each other, over how they are made and marketed. We have not read every court in the country, so this is not a statement that no patient has sued. Those suits
Should I stop taking a GLP-1 because of a lawsuit?
A lawsuit is not a safety finding. What FDA has found is in each medicine's label, including its warnings on severe stomach problems. Do not stop or change a medicine without talking to your prescriber. Severe stomach problems, from each label
What did the court say about gastroparesis?
That a claim of it needs a test. Its order reads: "Any Plaintiff claiming to suffer (or have suffered) from gastroparesis, must show that their diagnosis is based on a properly performed gastric emptying study (scintigraphy, breath test, or WMC)." This is about what evidence a claim needs. It does not decide whether a medicine caused anyone's illness. The order