Why Is Wegovy Cheaper Than Mounjaro in the UK?

You've compared prices online and Wegovy looks noticeably lower, here's the real reason why

Picture this: you've spent twenty minutes on browser tabs, noting prices for both medicines, and Wegovy consistently comes out cheaper. That gap is real, and the explanation is straightforward. Tirzepatide (Mounjaro) is a dual GIP and GLP-1 receptor agonist (the only medicine of its kind licensed for weight management in the UK) and Eli Lilly prices it accordingly. Semaglutide (Wegovy) activates a single receptor pathway and has been on the UK market longer; Novo Nordisk's pricing reflects that more established position. When Lilly increased Mounjaro's list price in September 2025, reported widely at the time, the gap between the two widened considerably at the higher dose tiers. So if you're asking whether Wegovy is cheaper than Mounjaro, the short answer is yes, typically, and that's by design at manufacturer level, not because one is inferior or diluted. If you find yourself wondering whether Ozempic works out cheaper than Mounjaro, the answer involves a few important distinctions around licensing and dosing that are worth understanding before you compare figures.

Trial evidence matters here too. The SURMOUNT-5 head-to-head study, published in the New England Journal of Medicine, found tirzepatide produced greater average weight loss than semaglutide 2.4mg over 72 weeks in adults with obesity. Wegovy at the newer 7.2mg dose narrows that gap. Whether the difference in outcomes justifies the difference in cost is a clinical question, not a price comparison exercise, and it's one worth working through with a prescriber rather than a spreadsheet. You can read more about how the two medicines compare head to head on our Wegovy vs Mounjaro overview page.

What headline prices at many providers quietly leave out

A low headline figure for either medicine can be misleading. Many private providers list the medicine price alone and charge separately for the consultation, the prescription, the delivery and ongoing dose-review support. Add those line items back and the cheaper-looking option sometimes catches up with (or overtakes) a higher-quoted all-in price elsewhere. That's consumer arithmetic worth doing before you commit.

There's a practical side to this too. When your pen arrives from a legitimate pharmacy, it comes cold-packed and tracked, at nume, via DPD, in a plain box that gives nothing away on the doorstep. If a provider's headline price doesn't obviously include temperature-controlled delivery for a medicine that requires refrigeration, it's reasonable to ask what their cold-chain process looks like. Our cost comparison of Wegovy and Mounjaro breaks down what a full private treatment month tends to include across different providers.

The NICE technology appraisal for tirzepatide (TA1026) and the parallel appraisal for semaglutide (TA875) both note these medicines are recommended for use alongside lifestyle support, which a prescriber, not a checkout page, should be helping you plan. An aftercare service is part of treatment, not an optional extra. If it isn't included in what you're quoted, it will show up later as an unbudgeted cost or, worse, an unanswered question at 9pm on a Sunday. You can explore the full picture of what a private weight-loss treatment involves on our weight-loss treatments overview.

Where nume sits, and why we don't try to win on price

Cheapest isn't a race we entered. One transparent price at nume covers the consultation, the prescription, the medicine, tracked next-working-day delivery and 7-day aftercare. There is no subscription, no auto-renewal, no separate prescription charge appearing at the final step. Every repeat order goes through fresh clinical review before anything is dispatched.

What that buys you, practically, is this: a real prescriber (a GPhC-registered Independent Prescriber) reads your answers and your health information before approving anything. Our clinical team page sets out how our prescribers work. We also run identity verification and live weight checks before a first prescription, and we notify your GP in line with GPhC guidance. Those steps cost time. They are also the steps that protect you.

We're not the right choice if you want the lowest number on a price comparison table. We are the right choice if you want a service that treats a prescription medicine like a prescription medicine. If you'd like to understand more about how we work, the about us page has the full picture, and our FAQs cover the questions people most often ask before starting.

Why 'cheapest' is the wrong test for a prescription medicine

Here's the part that genuinely matters. Mounjaro and Wegovy are both Prescription-Only Medicines. UK law requires a prescription following clinical assessment before either can be legally supplied. Sellers offering either medicine without that process (through social media, unverified websites or suspiciously steep discounts) are operating outside the law. The MHRA has issued repeated warnings about counterfeit weight-loss pens; fake products have been found to contain insulin rather than the medicine on the label, causing serious harm.

A price that looks dramatically lower than the market range is worth treating as a warning sign. You can verify any online pharmacy on the GPhC register before handing over payment details. For a medicine you inject weekly, genuine supply chain and clinical oversight are the metrics that keep you safe. Price is a reasonable secondary consideration; it shouldn't be the first one. If you're weighing up whether Wegovy or Mounjaro is cheaper for your specific situation, a good starting point is our detailed cost comparison page, and you can also explore how Mounjaro and Ozempic compare on price in a diabetes vs weight-loss context. When you're ready to talk to a prescriber about which medicine suits your circumstances, start your free consultation here.