Mounjaro 5mg new price: what UK private treatment actually costs

Why did Mounjaro's 5mg price change, and what does it cost now?

Eli Lilly adjusted Mounjaro's UK list prices from 1 September 2025. The changes were most dramatic at the higher doses (the 15mg pen's list price rose from roughly £122 to around £330 per four-week pen) but every strength in the range was affected. Private providers set their own retail prices above the list price, so the 5mg pen now sits in a noticeably higher bracket than it did before the change.

For context on where 5mg sits in the schedule: treatment begins at 2.5mg (a starter pen designed to let your body settle in), and many people move to 5mg at around week five. It is a genuinely therapeutic dose for many patients, not just a bridge. You can read more about Mounjaro 5mg pricing in detail if you want a fuller breakdown of that specific pen.

As widely reported in August 2025, the list-price revision was Lilly's first significant UK price increase since Mounjaro launched here. Private market prices followed. Hedging is appropriate: individual providers price differently, promotional structures vary, and the figures reported in the press reflect list prices rather than what every pharmacy charges. If you want a clear summary of what Mounjaro's new price looks like and how it compares to what came before, that page sets it out plainly. The NICE appraisal of tirzepatide (TA1026) sets out the clinical and economic context that informs how the medicine is positioned in the UK market.

What does a Mounjaro price typically include, and what does it sometimes not?

A headline price can look straightforward and still leave you paying more than you expected at checkout. It is one of the more frustrating experiences people describe when they first start looking into treatment online.

Some providers charge separately for the consultation, others for the prescription, and others add a delivery fee at the end. Dose-review support (the clinical check before each repeat order) is sometimes listed as a premium add-on. If you are transferring from another provider or requesting a dose increase, some services charge an additional review fee for that too.

The full cost of Mounjaro is therefore rarely just the pen price. A fair comparison between providers means asking: does this price include the consultation? The prescription? Delivery? Aftercare if I have a question between orders? Ongoing clinical review at each repeat?

At nume, one price covers all of it. Consultation, prescription, the medicine, delivery and 7-day aftercare are included. There are no subscriptions and no auto-renewals, every repeat order goes through a fresh clinical review before anything is dispatched. You can see current treatment pricing on our weight-loss treatments page.

Is a cheaper Mounjaro price always better value?

This is the question worth sitting with. Mounjaro is a prescription medicine that acts on your metabolism, appetite and gastric function. The clinical assessment before each supply is not a formality, it is the mechanism that keeps the treatment safe for you specifically.

At nume, a real clinician reads your consultation the same day. Not software. Not an automated checklist. A GPhC-registered Independent Prescriber who looks at your answers, your dose history and your circumstances before approving a prescription. You can read more about our clinical team and how that oversight works in practice.

When a provider's price is substantially lower than the rest of the market, it is worth asking what has been trimmed. The MHRA has warned publicly about fake weight-loss pens sold online, some seized counterfeit pens have contained insulin rather than tirzepatide. Large quantities of illicitly traded medicines have been removed from the UK market in enforcement operations. Reporting a suspicious seller is possible via the MHRA's Yellow Card scheme. A low price from a seller you cannot verify on the GPhC pharmacy register is a reason to pause, not a bargain.

We are not the cheapest provider. That is a deliberate choice. What a competitive price buys you at some services is a thinner clinical wrapper around the same pen. What the nume price buys (sorry, what the nume price buys) is the consultation, the prescriber's review, the genuine supply chain, the delivery and the aftercare. For a prescription medicine, price is the wrong measure of value. Safety, legitimacy and clinical continuity are the right ones.

If you would like to explore the full revised price list across all Mounjaro doses, that page sets out the broader picture. For the wider context of how the September 2025 changes landed, what the new Mounjaro prices mean in practice is worth reading alongside this one.