How much does a 10mg Mounjaro pen cost in the UK?

Step 1: understand what the market price really reflects

The cost of a 10mg Mounjaro pen shifted noticeably after Eli Lilly revised its UK pricing from 1 September 2025. As widely reported at the time, the list price for higher-dose pens rose sharply — the 15mg pen, for instance, moved from around £122 to around £330. Private providers set their own retail prices on top of that, so if you want to understand how much 10mg Mounjaro costs across the market, the 10mg pen now typically sits in the £200–£350 band, though you'll find variation on either side.

Those are the quoted figures you'll see. Whether the number you're looking at is complete is a different question. A quick check worth doing before you commit anywhere: look up the pharmacy on the GPhC register and confirm they are authorised to dispense prescription medicines. It takes under a minute and it tells you immediately whether you're looking at a regulated UK pharmacy or not.

The Mounjaro SmPC on the electronic Medicines Compendium sets out exactly what the medicine contains, how it's stored and who it's intended for. Pricing is a commercial decision made separately; what the medicine is and what clinical standards govern its supply are not.

Step 2: look at what the headline price excludes

Not every price you see for a 10mg Mounjaro pen is an all-in figure. Some providers add a consultation fee on top, often £20–£50. Others charge separately for the prescription, the packaging, or next-day delivery. A few build aftercare support into the model; many don't.

That matters at the 10mg stage in particular. You've worked up through the earlier doses (the 5mg pen stage is typically where most people spend several months) and by 10mg you're likely asking questions: whether the dose is working, whether side effects have settled, what happens next. If the price you paid doesn't include clinical support, you're handling those questions alone.

NICE's appraisal of tirzepatide, TA1026, outlines the evidence base and the conditions under which the medicine is recommended. It's a useful read for understanding the clinical framing behind why ongoing medical review isn't optional, it's baked into how the treatment is designed to work.

Step 3: what nume's pricing actually covers at this dose

At nume, we don't publish per-pen prices in this copy (current treatment pricing is shown on our treatment page) but the structure is straightforward. One price covers everything: the consultation, the prescription, the medicine itself, and free next-working-day delivery via DPD. There are no add-ons at checkout. We're also not the cheapest option on the market, and that's not an accident. The decision not to compete on price was made deliberately, because what gets cut when providers go lowest is usually the clinical infrastructure that makes treatment safe.

Every order at 10mg goes through the same process as the first: a named prescriber reviews your consultation before anything is dispensed. That review isn't automated. It takes into account where you are in treatment, how you've responded, and whether 10mg remains the right dose for you. Our clinical team handles this personally. If you have questions about your experience so far, our support team is available seven days a week.

Step 4: why 'cheapest' is the wrong question for a prescription medicine

A small saving on a 10mg pen is not the measure that protects you. The MHRA has warned publicly about counterfeit weight-loss pens sold through unregulated channels, in October 2025 a domestic manufacturing site producing fake tirzepatide pens was raided. The MHRA's Yellow Card scheme allows you to report suspect sellers if you encounter them.

The practical test is simpler than it sounds: is the pharmacy on the GPhC register, is a prescriber assessing your suitability, and is the supply chain licensed? If yes to all three, you're in the right territory. If any of those checks can't be answered clearly, the risk matters far more than the price. Our Mounjaro overview covers how to think through this properly, and if you're weighing up where to find the cheapest 10mg Mounjaro pen without compromising on safety, our FAQs answer the questions we hear most often from people at the 10mg stage. You can also find a broader breakdown of how much Mounjaro costs across all doses, or check the detail on how much the Mounjaro pen is at each stage of treatment.