Which drugs are semaglutide, and what is each one licensed for?

Is Ozempic the same drug as Wegovy?

Yes and no. Both contain semaglutide, and both are made by Novo Nordisk, but they are different medicines for regulatory purposes. Ozempic is a once-weekly subcutaneous injection licensed for type 2 diabetes in the UK. Its dose range tops out at 2mg for glycaemic control. Wegovy is a once-weekly subcutaneous injection licensed for weight management, titrated up to a 2.4mg maintenance dose, or, following MHRA approval in April 2026, a 7.2mg dose for eligible adults with obesity.

This distinction matters practically. A prescriber cannot lawfully use Ozempic to treat someone for weight loss in place of Wegovy; off-label use is possible in principle but carries additional obligations and is not how regulated online pharmacies operate for this indication. If you have been reading about Ozempic for weight loss, the product you are looking for is Wegovy. You can find a full explanation on our Wegovy overview page.

The two pens look different too. Ozempic comes in a reusable pen with separate needles; Wegovy uses a single-use pre-filled pen. Confusing them is a real-world problem, one worth flagging with any prescriber or pharmacist if you are switching between treatments for any reason.

What is Rybelsus, and how does it differ from the Wegovy tablet?

Rybelsus is an oral semaglutide tablet licensed for type 2 diabetes, available in 3mg, 7mg and 14mg strengths. The Wegovy tablet (approved by the MHRA on 11 June 2026 as the first oral GLP-1 medicine licensed in the UK for weight management) follows a completely different dose ladder: 1.5mg, 4mg, 9mg, and 25mg maintenance. These are separate products with separate licences.

It is important not to mix them up. Rybelsus doses (3mg, 7mg, 14mg) are not steps on the Wegovy tablet titration schedule. Someone prescribed Rybelsus for diabetes and someone taking the Wegovy tablet for weight management are on different medicines, even though the active molecule is the same. If you want to understand how all of these products fit together, our guide to semaglutide drugs breaks this out in detail.

Both oral forms share the same strict morning routine: taken on an empty stomach with a small amount of plain water, at least 30 minutes before any food, drink or other medicines. That requirement comes from how semaglutide is absorbed through the gut lining with the help of an absorption enhancer called SNAC. Miss the window and absorption drops sharply. The NHS medicines information for semaglutide covers the practical detail here, and the patient information leaflet supplied with each product is the definitive reference for your specific brand and dose.

Which semaglutide drug is right for weight loss in the UK?

For weight management, the two licensed options are the Wegovy injection and the Wegovy tablet. The injection has the longer track record: STEP 1, published in the New England Journal of Medicine, showed an average body-weight reduction of around 15% over 68 weeks at the 2.4mg dose in adults without diabetes. The tablet reached around 13.6% average weight loss over 64 weeks in the OASIS 4 phase 3 trial, or roughly 17% among participants who adhered fully throughout. The right format (injection or tablet) depends on your preferences, lifestyle, and what the prescribing clinician considers appropriate for you.

Neither Ozempic nor Rybelsus is the answer if you are looking for a weight-loss medicine. NICE's appraisal of semaglutide for weight management (TA875) assessed Wegovy specifically; it does not extend to Ozempic or Rybelsus. Confusing the products is understandable given how much coverage Ozempic has received in the press, but using the wrong brand carries genuine clinical risk. A prescriber can talk you through the options, including whether tirzepatide (Mounjaro) might suit you better, you can read about medicines similar to semaglutide if that comparison is useful context before a consultation.

It is also worth knowing that no semaglutide product is available legally without a clinical assessment. If you are new to this area and want to understand what semaglutide medicines are before going further, that is a good place to start. Tablets left the fridge requirement behind, which makes the Wegovy tablet more convenient for travel, but the prescription requirement stays the same. If you use hormonal contraception such as the implant, it is worth reading about whether Wegovy affects Nexplanon before starting treatment, and that conversation is worth having.

What about semaglutide medicines from outside the UK?

In the United States and some other markets, semaglutide is sold under additional brand names or in formulations not licensed here. None of those products carry UK marketing authorisations, and the MHRA has warned repeatedly about counterfeit and unlicensed weight-loss medicines being sold through social media and unregistered websites. Fake pens have, in some documented cases, contained insulin rather than the stated medicine, a potentially life-threatening substitution.

The safe approach is straightforward: buy only from a pharmacy you can verify on the GPhC register. Any seller offering semaglutide medicines without a prescription, or at prices that seem implausibly low, is a red flag worth taking seriously. If you want to explore what genuine, clinically supervised treatment looks like, our weight-loss treatment overview sets out how the process works step by step. You can also review how Wegovy pricing works in the UK for honest context on what a legitimate private prescription actually costs.

Suspected counterfeit medicines can be reported to the MHRA via the Yellow Card scheme, which also accepts reports of genuine side effects from patients on licensed products.