Wegovy vs Mounjaro cost: what you're really comparing

You've priced both up and Mounjaro looks dearer, so what's going on?

Picture the usual afternoon: two tabs open, one for each medicine, and Mounjaro's monthly figure looking stubbornly higher than Wegovy's at a similar-sounding stage. That pattern is real and it has a reason behind it. Mounjaro is a dual-agonist, acting on both the GIP and GLP-1 receptors, and it's the only medicine of its kind licensed in the UK for weight management. Wegovy works on the single GLP-1 pathway. Different mechanism, different manufacturer, different pricing.

Cost also moves with dose. Both are supplied per pen covering four weekly injections, and treatment starts low on purpose so your body settles before the amount goes up. As your prescriber steps you through the schedule, the monthly figure typically climbs. So a Mounjaro price you saw at a starter level isn't the price you'll pay months later, and the same is true of Wegovy. Comparing one dose against the other's is where a lot of confusion creeps in.

One thing worth naming early. Eli Lilly raised Mounjaro's UK list price from 1 September 2025, with the highest dose's list price reported to have moved from around £122 to around £330 per four-week pen, and typical private prices since then have ranged roughly £149 to £375 a month depending on dose and provider. If you want the two lined up side by side at each rung, our Mounjaro and Wegovy price comparison lays out how the figures track. The short version: yes, Mounjaro usually costs more, and no, that alone doesn't decide which suits you.

Why is Mounjaro often the pricier of the two?

The most common answer patients want is simply why. Part of it is what the medicine is. A dual-agonist targeting two gut-hormone receptors is a different proposition to a single-pathway GLP-1, and in the SURMOUNT-5 head-to-head trial published in the New England Journal of Medicine (2025), tirzepatide produced greater average weight reduction than semaglutide 2.4mg over 72 weeks. Where a medicine shows stronger average results in a direct comparison, pricing tends to follow.

The other part is plainer commercial reality. Manufacturers set list prices, and those move. Lilly's September 2025 increase pushed Mounjaro's list price up considerably, and private prices adjusted with it. Wegovy's pricing has its own trajectory, with a higher 7.2mg maintenance dose now approved that shifts the picture again. None of this is fixed, which is exactly why any comparison you read has a shelf life.

If the reasons behind the gap are what you're chasing, we've unpacked them in more depth in why Wegovy tends to be cheaper than Mounjaro. There's a related trap worth flagging too: comparing doses that aren't equivalent. People often ask what 5mg of Mounjaro equals in Wegovy terms, and the honest answer is that the two aren't interchangeable milligram for milligram, so a price-per-mg comparison misleads. Suitability, not arithmetic, decides your dose.

What a tempting low price usually leaves off the receipt

Here's where a headline figure earns a second look. A price that undercuts the market often does so by stripping out things you'd assumed were included. The consultation might carry its own fee. The prescription might be charged separately. Delivery could be extra, or slow, or both. And aftercare, the part where you actually need someone when a side effect flares or a dose question comes up, may not exist at all.

That matters because these medicines aren't a one-off purchase. You start low, you're reviewed, your dose is stepped up over months, and each of those touchpoints benefits from a clinician who knows your history. A price that looks lean because it's just the pen, with everything else billed as you go, can quietly total more than a single all-in figure. It's the same logic as a cheap flight that charges for every bag.

So when you compare the cost of Wegovy vs Mounjaro across providers, compare like with like: does the number include the clinical assessment, the prescription, delivery and ongoing support, or just the medicine in the box? If you're also weighing up tirzepatide against other options on the market, our tirzepatide vs Ozempic cost breakdown shows how the components stack up across those two as well. Read the small print before the sticker price.

Discount codes and vouchers: why you won't find them here

Plenty of searches around Wegovy vs Mounjaro cost in the UK are really looking for a code to knock money off. Worth being straight about this: nume doesn't run discount codes, vouchers, sales or seasonal offers, on either medicine or anything else. There's a reason, and it isn't stinginess. These are prescription-only medicines, and dangling a discount to nudge someone toward a POM sits awkwardly with treating the decision as a clinical one.

There's a safety angle too. A discount code for a weight-loss injection from a seller you can't verify is a genuine red flag. The MHRA has warned publicly about fake weight-loss pens sold online and through social media, some of which have contained insulin and led to hospital admissions, and enforcement has since scaled up considerably. Sellers offering these medicines without a clinical assessment, or at prices far below the market, are exactly the pattern to walk away from. You can report a suspect seller through the MHRA's Yellow Card service.

What you get instead of a code is one transparent price with everything already inside it: the free consultation, the prescription, the treatment, free next-working-day delivery and seven-day aftercare, no subscription and no auto-renewal. If a plain comparison of what different sellers charge is what you're after, how Wegovy and Mounjaro prices line up keeps it factual. No gimmicks, no countdown timers.

Where nume sits, said plainly

We'll lose the price comparison on purpose, and we're comfortable saying so. nume isn't built to be the lowest number on a search results page. It's built around three things: speed, safety and service. Order before noon on a weekday, get clinically approved, and your treatment is dispatched the same day for free next-working-day tracked delivery. That noon cut-off is handy if you want it sorted before the school run rather than left hanging over the weekend.

The single price you see on the treatment page covers the lot. There's no consultation fee waiting in the wings, no prescription charge bolted on, no delivery surcharge, no subscription quietly renewing. Every repeat order is re-reviewed by a prescriber rather than rubber-stamped, which is the part a rock-bottom listing tends to skip. You're paying for a GPhC-registered pharmacy and a clinician who stays with you as your dose changes, not just a pen in a jiffy bag.

Current treatment pricing lives on our weight-loss treatments page, kept up to date so you're never comparing against a stale figure. If you'd rather understand the people behind the service first, our about us page and the profile of our lead prescriber set out who reviews your consultation. Cheapest isn't a race we entered. Genuine supply and real clinical care is the lane we did.

Both are prescription-only, and that shapes the whole comparison

Neither medicine can be bought off a shelf, and that framing changes what a fair cost comparison even means. Mounjaro and Wegovy are both prescription-only medicines under UK law, licensed for weight management in adults with a BMI of 30 or above, or 27 or above with a weight-related condition such as high blood pressure, high cholesterol or obstructive sleep apnoea. Lower thresholds can apply for some ethnic backgrounds under UK guidance. BMI on its own never guarantees a prescription; a prescriber weighs your full history.

Because a clinical assessment is legally part of the deal, a price that appears to skip it should worry you rather than tempt you. The legitimate route is the same for both medicines: a consultation, a review by a registered prescriber, identity and weight verification, then dispatch from a pharmacy you can look up. You can check any online pharmacy on the General Pharmaceutical Council register before you part with anything.

For context on who the NHS currently funds and why waiting lists are long, the NHS England guidance on weight-management injections is the clearest official source. NICE has appraised both, recommending tirzepatide in TA1026 and semaglutide within specialist services in TA875. If you don't meet the strict NHS criteria, or don't want to wait, a regulated private route is the alternative.

Cheapest is the wrong test for a medicine like this

Boil it all down and one thing holds. Price is the wrong yardstick for a prescription weight-loss medicine. A small monthly saving means very little if it comes without a prescriber who knows you, without genuine supply through the licensed chain, or without anyone to call when the nausea that often eases within a fortnight instead lingers. The right test is whether the treatment is safe, legitimate and properly supervised.

That's not a line we use to dodge the money question. Both medicines cost real money, Mounjaro usually more than Wegovy, and you deserve to know that going in. A useful place to see that gap in full detail is our Mounjaro vs Ozempic cost page, which sets out how tirzepatide's pricing compares across the wider injectable landscape. Two identical-looking prices can hide completely different levels of care, and the cheaper of the two can be the one that leaves you unsupported halfway up your dose schedule.

Which medicine suits you isn't a decision to make with a calculator anyway. It rests on your health history, how your body responds and what your prescriber judges appropriate, and that conversation is the same whether you land on tirzepatide or semaglutide. A question that sometimes comes up at this stage is how much semaglutide is actually in Mounjaro, and the straightforward answer is none, because Mounjaro contains tirzepatide rather than semaglutide, which is worth understanding before you compare the two. If you want to see whether either is a fit, the sensible next step is a free consultation rather than a price war. Check your eligibility with our prescribers and let the clinical picture, not the sticker, lead.

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