The Ozempic and Wegovy mistake sending thousands to ER

Poison control centers received nearly 3,000 calls about Ozempic and Wegovy overdoses in just eleven months — and in 94% of those cases, the drug was the only substance involved.

Story Snapshot

Semaglutide-related poison control calls have surged 15-fold since 2019, with nearly 3,000 calls logged from January through November 2025.
Most overdoses trace back to simple math mistakes — patients injecting 2 mg instead of 0.1 mg, or dosing daily instead of weekly.
Compounded versions of semaglutide carry extra risk, with the Food and Drug Administration (FDA) documenting patients drawing up 5 to 20 times the intended dose from multi-dose vials.
There is no antidote for a semaglutide overdose. Doctors treat symptoms with fluids and anti-nausea medicine.

The Numbers Behind the Spike

America’s Poison Centers tracked close to 3,000 semaglutide-related calls from January through November 2025. That is a 15-fold jump from 2019 call volumes. Utah’s poison control center reported a 640% increase in glucagon-like peptide-1 (GLP-1) drug calls since 2020 alone. These are not small statistical blips. They represent thousands of real people who took too much of a drug they believed was helping them.

The most striking detail in the data is what was not involved. In 94% of reported cases, semaglutide was the only substance found. No alcohol. No other drugs. Just semaglutide, taken incorrectly. That fact points directly at a patient education problem, not a drug interaction problem. People are harming themselves with a single medication because no one clearly explained how to use it.

The Specific Mistakes Sending People to the ER

The errors follow a clear pattern. Patients inject 2 mg when the correct dose is 0.1 mg. They take 2.4 mg instead of 0.25 mg. They inject the drug every day instead of once a week. These are not reckless acts. They are the predictable result of confusing labels, tiny syringe markings, and instructions that assume medical training most patients do not have.

Compounded semaglutide — versions mixed by specialty pharmacies rather than manufactured by Novo Nordisk — adds another layer of danger. These products come in multi-dose vials. Patients draw their own doses using syringes. The FDA documented cases where patients drew up 5 to 20 times the intended amount because they confused milliliters, milligrams, and units. Health care providers made the same math errors when converting between measurement systems, sending patients home with 5 to 10 times the correct dose.

What an Overdose Actually Feels Like

Semaglutide overdose symptoms look like an extreme version of the drug’s normal side effects. Intense nausea, vomiting, diarrhea, and stomach pain hit first. Severe dehydration follows. Blood sugar can drop dangerously low. In rare cases, pancreatitis develops. Because these symptoms overlap with ordinary GLP-1 side effects, many patients wait too long before calling for help.

There is no medication that reverses a semaglutide overdose. Doctors manage symptoms with intravenous fluids and anti-nausea drugs and wait for the drug to clear the body. That reality makes prevention the only real strategy. If you think you or someone else took too much, call poison control at 1-800-222-1222 immediately. Do not wait to see if symptoms get worse.

Compounded Products Carry the Highest Risk

The FDA issued a direct alert to health care providers and compounding pharmacies in July 2025 about dosing errors tied specifically to compounded semaglutide. Researchers also found that some compounded products contained dangerous impurities and banned substances like BPC-157 — ingredients that have no place in any legitimate weight-loss drug. Novo Nordisk reported over 100 hospitalizations and at least 10 deaths linked to compounded versions, not FDA-approved Ozempic or Wegovy.

These findings do not mean FDA-approved products are risk-free. Dosing errors happen with brand-name drugs too. But the compounded market — fueled by online telehealth services, social media weight-loss communities, and cheaper prices — creates conditions where errors are far more likely. When a patient buys semaglutide through an online marketplace and draws their own dose from an unlabeled vial, the margin for error is enormous.

What You Should Do Before Your Next Injection

America’s Poison Centers recommends a short checklist before every injection. Follow the titration schedule your doctor gave you. Verify the dose before you inject. Understand whether your dose is measured in milligrams, milliliters, or units — these are not the same thing. Get hands-on training from a pharmacist or nurse before your first self-injection. Store the medication away from children. These steps sound simple. The call volume to poison control suggests most patients are skipping them.

The broader lesson here fits a pattern seen before with insulin and opioids. When a powerful drug goes mainstream fast, patient education never keeps pace. The drug is not always the villain. Sometimes the system that hands it out without proper training is. With nearly 3,000 overdose calls in eleven months and no antidote available, the window to fix the education gap is closing quickly.