What Is Ozempic? A Plain-English Guide to the Medication Everyone Talks About

Ozempic is a prescription medicine for adults with type 2 diabetes. It contains semaglutide, a GLP-1 drug made by Novo Nordisk, and it's usually taken as a once-weekly injection under the skin. It lowers blood sugar, reduces the risk of heart and kidney complications in people with diabetes, and often leads to weight loss, which is why it became famous far beyond diabetes care.

This page is the plain-English overview: what Ozempic is, what it's approved for, how it's taken, what it costs, and what to know before starting. Each section links to a deeper guide if you want the details.

According to its FDA label, Ozempic is used in adults with type 2 diabetes to improve blood sugar together with diet and exercise, to lower the risk of heart attack, stroke and cardiovascular death in those who also have heart disease, and to lower the risk of kidney disease getting worse in those who also have chronic kidney disease. Our Ozempic for diabetes guide explains what results to expect.

It's widely prescribed off-label for weight loss, but it isn't approved for that. The same drug at higher doses is sold as Wegovy, which is approved for chronic weight management. See Ozempic vs Wegovy and how Ozempic helps you lose weight.

Ozempic belongs to a class called GLP-1 receptor agonists. It mimics GLP-1, a hormone your gut releases after meals that raises insulin when blood sugar is high, lowers sugar release from the liver, slows digestion and reduces appetite. Your natural GLP-1 lasts a couple of minutes; semaglutide is engineered to last about a week. Our explainer on how Ozempic works goes through each effect. Chemically, semaglutide is a peptide, a short chain of 31 amino acids, which is why it's injected and kept cold; here's what being a peptide means.

It's not insulin, not a stimulant and not a fat burner. Semaglutide is the generic name of the active ingredient; Ozempic is one brand. The difference matters when you see "semaglutide" advertised online, which usually isn't Ozempic at all. See Ozempic vs semaglutide.

The injection comes in a prefilled pen with a small needle. You inject it under the skin of your stomach, thigh or upper arm once a week, on the same day each week, at any time of day, with or without food. The dose starts at 0.25 mg for four weeks to let your stomach adjust, then increases to 0.5 mg, and your prescriber may raise it to 1 mg or 2 mg if needed.

Ozempic has been available in the U.S. since early 2018, so it has more than eight years of real-world use, and semaglutide's clinical trial history goes back further.

With insurance and type 2 diabetes, many people pay a modest copay, and the manufacturer savings card can bring it as low as $25 for eligible commercially insured patients. Without insurance, Novo Nordisk sells it directly at $349 a month for doses up to 1 mg and $499 for 2 mg. Ozempic tablets start at $149. For weight loss without diabetes, insurance usually won't cover it. See our cost guide and insurance guide.

Nausea, diarrhea, vomiting and constipation are the most common side effects, mostly in the first weeks and after dose increases. Rarer but serious risks include pancreatitis, gallbladder problems and kidney injury from dehydration. People with a personal or family history of medullary thyroid cancer or MEN 2 shouldn't take it, and it should be stopped at least two months before a planned pregnancy. Our safety guide covers the full list, and the side effects page covers how to manage the common ones.

Since May 2026 the Ozempic name also covers a daily tablet, the reformulated oral semaglutide that replaced Rybelsus, with 1.5, 4 and 9 mg strengths and a cardiovascular indication of its own. The details, including the dose conversion from Rybelsus, are in Ozempic tablets explained.

Ozempic is injected under the skin of the abdomen, thigh or upper arm once a week; how to choose and rotate sites is explained in where to inject Ozempic.

Ozempic has been on the US market since February 2018; the full history, from approval to the pill, is in how long has Ozempic been on the market.

Ozempic is a once-weekly semaglutide injection, and now a daily pill, approved for adults with type 2 diabetes. It lowers blood sugar, protects the heart and kidneys in the right patients, and helps many people lose weight. It's not approved for weight loss on its own, it has real side effects early on, and it works only as long as you keep taking it. If you're considering it, the most useful first question for your doctor is simple: is Ozempic the right version of this drug for my situation?