Ozempic and Wegovy both contain semaglutide, from the same maker, Novo Nordisk, but they are approved for different things. Ozempic is approved for adults with type 2 diabetes. Wegovy is approved for weight management and for lowering cardiovascular risk in certain adults, and it uses higher doses: the usual maintenance dose is 2.4 mg a week, against 0.5 to 2 mg for Ozempic. Which one is right depends on your diagnosis, so your prescriber decides.
Ozempic vs Wegovy at a glance
| Ozempic | Wegovy (injection) | Wegovy (tablets) | |
|---|---|---|---|
| Active ingredient | Semaglutide | Semaglutide | Semaglutide |
| Maker | Novo Nordisk | Novo Nordisk | Novo Nordisk |
| Approved use (US) | Type 2 diabetes: blood sugar control; lower cardiovascular risk in adults with type 2 diabetes and heart disease; lower kidney and cardiovascular risk in adults with type 2 diabetes and chronic kidney disease | Weight reduction and long-term maintenance (adults and ages 12+ with obesity; adults with overweight plus a weight-related condition); lower cardiovascular risk in adults with heart disease and obesity or overweight; a liver condition (MASH) with fibrosis in adults | Weight reduction in adults with obesity, or overweight plus a weight-related condition; lower cardiovascular risk in adults with heart disease and obesity or overweight |
| Schedule | Once weekly: 0.25 mg for 4 weeks, then 0.5 mg; 1 mg and 2 mg if needed, each after at least 4 weeks | Once weekly: 0.25 mg, 0.5 mg, 1 mg, 1.7 mg, each for 4 weeks, then 2.4 mg maintenance (1.7 mg is an option); up to 7.2 mg may be used in adults who tolerate 2.4 mg and need more weight reduction | Once daily: 1.5 mg for 30 days, then 4 mg, 9 mg, each for 30 days, then 25 mg |
| Form | Pen (prefilled syringe also listed) | Single-dose pen or syringe, and a FlexTouch pen | Tablet |
Sources: Ozempic prescribing information (sections 1, 2.2, 3) and Wegovy prescribing information (sections 1, 2.2, 2.3, 3). Doses and schedules are from the labels; your prescriber sets your own plan.
Same molecule, different purpose
Semaglutide is a GLP-1 receptor agonist: it mimics a gut hormone that helps regulate blood sugar and appetite (Ozempic label, section 12.1). Ozempic’s indications are all in adults with type 2 diabetes. Wegovy’s are weight reduction and long-term weight maintenance, cardiovascular risk reduction and liver disease, always alongside a reduced-calorie diet and more physical activity. Weight loss is a known effect of Ozempic, but it is not what Ozempic is approved for, and using it that way is off-label. The label also says not to combine Wegovy with other semaglutide products or other GLP-1 medicines. In the US, Ozempic now also comes as a daily tablet for type 2 diabetes (1.5 mg, 4 mg and 9 mg), which replaced Rybelsus in 2026 (Novo Nordisk); this comparison is about the weekly Ozempic injection.
If you are on a low dose and wondering about progress, our Ozempic timeline explains the starting steps.
Dosing: where the real difference is
Both start at 0.25 mg once a week and step up slowly to limit stomach side effects. Ozempic’s steps are 0.5 mg, then 1 mg and 2 mg only if more blood sugar control is needed. Wegovy’s steps run every 4 weeks to 2.4 mg, the usual maintenance dose, and the label says to consider delaying escalation by 4 weeks if a dose isn’t tolerated. This is why the two pens are not interchangeable and why switching needs a prescriber.
Missed doses: Ozempic’s label says to give a missed dose within 5 days. For Wegovy injection, take it as soon as possible if the next dose is more than 2 days away; if it is less than 2 days away, skip it. If two or more doses in a row are missed, the label says to restart escalation at a lower dose.
What the trials show for weight
We only quote the Wegovy label here. In a 68-week trial in adults with obesity or overweight, average weight change was -14.9% with Wegovy 2.4 mg and -2.4% with placebo, both with lifestyle support. In adults who also had type 2 diabetes, it was -9.6% with Wegovy versus -3.4% with placebo (Wegovy prescribing information, Table 8). These are averages; individual results differ.
Side effects
The Ozempic label lists nausea, vomiting, diarrhea, abdominal pain and constipation as most common (5% or more of patients). The Wegovy label lists the same plus others, including headache, fatigue, dyspepsia, dizziness, hair loss and, in people with type 2 diabetes, low blood sugar. Both carry a boxed warning about thyroid C-cell tumors seen in rodents and cannot be used with a personal or family history of medullary thyroid carcinoma or MEN 2. Both list pancreatitis, gallbladder disease, kidney injury from dehydration, diabetic retinopathy complications and aspiration risk during anesthesia among warnings. Call your prescriber about severe or lasting symptoms. See GLP-1 side effects: what to expect and how to manage them.
Access and cost
Coverage differs by country and insurer, and insurers often treat weight-management and diabetes drugs differently. We don’t quote prices; ask your prescriber, pharmacist or insurer. Using a diabetes drug for weight loss when you don’t have diabetes can be outside coverage rules, which is another reason to discuss the right product with your prescriber. For more on weight-management options, see our GLP-1 weight loss medication guide.
Tracking either medicine
Whichever you take, a log of injection day, dose step, side effects, meals and weight helps you and your prescriber, especially around dose increases. Mingo is a GLP-1 tracker for iPhone and Android that logs shots, food and protein, side effects and weight in one place; it doesn’t replace your doctor. Get the app.
Key takeaways
- Same ingredient (semaglutide), different approvals: Ozempic for type 2 diabetes, Wegovy for weight management and cardiovascular risk reduction.
- Wegovy’s usual maintenance dose is 2.4 mg weekly (higher is possible); Ozempic’s tops out at 2 mg.
- Side effects overlap, mainly digestive, with the same boxed thyroid warning.
- Don’t switch or combine products without your prescriber.
Frequently asked questions
What is the main difference between Ozempic and Wegovy?
Ozempic is approved for adults with type 2 diabetes; Wegovy is approved for weight management and cardiovascular risk reduction. Both contain semaglutide, but their doses and dosing schedules differ.
Which is better for weight loss, Ozempic or Wegovy?
Wegovy is the one approved for weight management and has trial data for that use on its label. Ozempic is approved for type 2 diabetes. Ask your prescriber which fits your situation.
How much do Ozempic and Wegovy cost?
It depends on your country, insurance and pharmacy, and we don’t give prices here. Ask your pharmacist or insurer.
Are there different side effects for each?
They are very similar, mainly nausea, vomiting, diarrhea and constipation, and both carry the same boxed thyroid warning. The Wegovy label lists a longer set of common reactions, so read both labels with your prescriber.
Can you switch from Ozempic to Wegovy?
Only with your prescriber, who decides the dose to start at. The two use different dosing schedules, so don’t swap pens on your own.
