What weight loss injection costs actually look like in the UK

What NICE and Eli Lilly's pricing shift tell us about market costs

The clearest signal on value came from NICE when it recommended tirzepatide (Mounjaro) for weight management in December 2024. The appraisal weighed clinical outcomes (average weight reductions of around 20% at the highest dose in the SURMOUNT-1 trial, published in the New England Journal of Medicine) against cost-effectiveness thresholds that reflect a medicine's real-world impact, not just its price tag. That framing matters when you're comparing providers.

Then, from 1 September 2025, Eli Lilly raised Mounjaro's UK list price significantly. The highest-dose pen moved from around £122 to around £330 at list. Private providers absorbed or passed on that increase differently, which is why the market currently shows a wide spread, roughly £149 to £375 per month, varying by dose and service. Those figures are widely reported and should be treated as ballpark context, not guarantees; actual prices change and depend on the dose a prescriber deems appropriate for you.

Wegovy (semaglutide) sits in a comparable range at its standard 2.4mg maintenance dose, with the newer 7.2mg pen approved by the MHRA in April 2026 likely to affect pricing as supply develops. For a practical breakdown of how those figures compare across the dose schedule, our page on how much weight loss injections cost goes into more detail.

What the headline price often leaves out

A low headline figure is easy to post. What it covers is the question worth asking. Many providers charge separately for the consultation before they'll issue a prescription, that can add £20 to £50 or more per visit. Delivery fees, prescription fees and aftercare calls are routinely itemised. Some services operate on a subscription model that auto-renews unless you cancel; others charge for dose reviews or for the clinical sign-off needed before stepping up to the next strength.

Add those together and the cheapest-looking option frequently isn't. If you're trying to understand what genuinely low cost weight loss injections actually include once fees are itemised, the picture is rarely as straightforward as a headline figure suggests. The true cost of weight loss injections often only becomes clear once you read the small print, or after you've already paid.

There's something honestly frustrating about that, especially if you've spent time researching and assumed prices were comparable. They're not always presented that way. Worth checking exactly what each quoted price includes before you commit to anything.

For anyone weighing up nearby options, local weight loss injection costs can vary further depending on clinic overheads, in-person services carry premises costs that online providers don't.

What nume charges, and why it's set up the way it is

We're not the cheapest option available. That's a deliberate position, not an oversight. At nume, one price covers the consultation, the prescription written by a GPhC-registered Independent Prescriber, the medicine, and free next-working-day tracked delivery to your door. There are no subscription agreements, no auto-renewals, and no separate charges for the clinical re-review that happens before every repeat order. If you'd like to understand how our pricing sits relative to the average cost of weight loss injections across the market, that context can help you judge what represents fair value. Current treatment pricing is shown on our weight loss treatments page.

Every consultation is reviewed personally, a real clinician reads your answers, checks your Summary Care Record where appropriate, and verifies your identity and current weight. That takes time and it adds to what we charge. You can verify our pharmacy on the GPhC register (registration number 9012878) at pharmacyregulation.org, it takes about thirty seconds and is the clearest check available for any online pharmacy. More about how we operate is on our about page.

Why price is the wrong measure for a prescription medicine

The MHRA has warned repeatedly about fake weight loss pens sold through social media and unregulated websites. In 2025, enforcement actions recovered around 20 million doses of illegally traded weight management medicines (worth approximately £45 million) including counterfeit tirzepatide pens from an illicit manufacturing site in the UK. Some fake pens have contained insulin rather than the labelled medicine, with serious consequences for recipients. The MHRA's Yellow Card scheme accepts reports of both suspected side effects and suspect sellers.

For a prescription-only medicine, the cheapest listing answers the wrong question. The supply chain, the clinical oversight, and the regulatory standing of the pharmacy are what actually protect you. Sellers offering these medicines without a prescription or clinical assessment (regardless of price) are a red flag, not a bargain. A closer look at what 'cheapest' means in this market explains why the framing matters, and our FAQs cover common questions about what to look for in a legitimate provider.