How Much Does It Cost to Buy Mounjaro in the UK?

Why Mounjaro prices vary so much between providers

Since Eli Lilly revised its UK list prices from 1 September 2025, the cost of Mounjaro has shifted meaningfully across the market. The highest licensed dose now carries a list price of around £330 per four-week pen, up from roughly £122 previously, a change that pushed many private providers to reprice their services, sometimes mid-subscription. Those figures are widely reported, and the direction of travel is clear: earlier assumptions that Mounjaro would stay inexpensive have not held.

Private prices typically range from around £149 per month at the lower doses to around £375 at the top end, though you will find figures outside that window. The dose you are prescribed is determined clinically, not by budget, treatment begins at 2.5mg (a tolerability period, not the dose doing the main work) and is titrated upward by your prescriber over time. That means the monthly cost tends to rise as treatment progresses, something worth factoring into any longer-term comparison. The Mounjaro price page sets this out in more detail.

It is also worth knowing that Mounjaro holds a Black Triangle designation from the MHRA, meaning it is under additional post-authorisation monitoring. The NHS tirzepatide page covers the medicine's profile clearly and is a good starting point if you want independent information before any commercial decision.

What headline prices often leave out

A low headline price for Mounjaro can be genuinely competitive, or it can be missing several things you would reasonably expect to be covered. The most common omissions are consultation fees (sometimes charged separately, sometimes monthly), prescription fees, and delivery charges that appear at checkout. Aftercare (clinical support between doses, guidance if side effects arise, prescriber review before each repeat) is not always included at all.

At 5mg, for example, the per-pen cost sits in a different bracket to the higher doses; if you are comparing prices across providers, checking whether dose-by-dose pricing is transparent is worth doing before you commit. Our 5mg Mounjaro cost page and the 10mg cost page break those figures down by dose so the comparison is easier to make honestly.

One misconception our prescribers hear fairly often is that the consultation is a formality, a tick-box before dispatch. It is not. Under UK law, Mounjaro can only be supplied following a genuine clinical assessment; a prescriber reviews your health history, current medicines, BMI, and any relevant conditions before deciding whether treatment is appropriate. That assessment has real clinical value, and a provider pricing it at zero may not be doing it properly.

What nume includes, and why we are not the cheapest

At nume, one price covers your consultation, prescription, the medicine itself, and free next-working-day delivery via DPD. There are no subscription terms, no auto-renewals, and no fees that appear between the quote and the checkout. Every repeat order goes back through a fresh clinical review, a named prescriber reads your update before anything is dispensed. That is how it works, every time.

We are not the cheapest option on the market, and that is a deliberate choice. Competing on price for a prescription medicine means cutting something, and the things that tend to get cut first are the ones that matter most: the quality of the clinical review, the aftercare when something feels off, the supply chain checks that confirm the medicine in the pen is genuine. You can read more about how we work on the about us page, and our clinical team's approach is outlined on our clinical team profile.

For a full overview of what treatment with Mounjaro looks like through nume, the treatment page sets out current pricing alongside the process from consultation to delivery.

Price is the wrong test for a prescription medicine, here is the right one

The MHRA has warned publicly about counterfeit weight-loss pens sold online, including fake pens found to contain insulin rather than the stated medicine. Enforcement action in 2025 included the seizure of around 20 million doses of illegally traded weight-loss medicines (worth approximately £45 million) and a raid on a counterfeit tirzepatide manufacturing site in the UK. The MHRA's Yellow Card scheme allows anyone to report suspect sellers, a useful signal of how seriously the regulator treats this.

Any legitimate Mounjaro supply requires a valid UK prescription following clinical assessment. A provider offering it without that process (or at a price that cannot plausibly cover clinical review, genuine product, and regulated dispensing) is a red flag, and if you are looking into what it costs to buy Mounjaro, understanding what a realistic price covers is a useful first check. Providers operating legally are listed on the GPhC pharmacy register, which you can search at pharmacyregulation.org; nume's registration number is 9012878.

The question worth asking is not which provider quotes the lowest number. It is which one you would trust if the medicine arrived and something felt wrong. That is the decision. If you want a clear sense of how much Mounjaro typically costs before you commit to anything, that page sets out what you can realistically expect to pay through a legitimate, regulated provider. If you are ready to have your eligibility assessed properly, you can speak to our prescribers at no charge.