How much is a 5mg Mounjaro pen in the UK?

Why the 5mg pen sits where it does on the price ladder

Mounjaro comes in six strengths, and private providers price each one differently. The 5mg pen sits one step above the 2.5mg starter, and in most cases costs noticeably more, reflecting both the higher active dose and the supply economics of a medicine that Eli Lilly significantly repriced from September 2025. Since that repricing, the highest-dose pen's list price rose to around £330 per four-week pen, and prices across all doses shifted accordingly. If you want to understand how each strength is positioned before committing to a dose, our guide to how much the Mounjaro pen costs walks through the full range in one place. Reported private prices for the 5mg pen have typically fallen somewhere between £149 and £260 per pen depending on provider, though these figures shift and should be treated as a rough market picture rather than a firm quote.

What those headline numbers don't reflect is the cost of getting there legitimately. Mounjaro is a Prescription-Only Medicine under the Human Medicines Regulations 2012, so a prescriber must assess your suitability before any pen can be dispensed. Some providers charge separately for consultations, prescription issuance, and repeat clinical reviews; those costs are real, even when they're listed on a different page to the medicine price itself. The full breakdown of how Mounjaro costs are structured across the UK private market explains the components you should be looking for before you compare any two quotes.

If you're thinking about the 10mg dose further into treatment, our separate page on 10mg Mounjaro pen pricing covers what to expect as your prescription progresses.

What headline prices on 5mg Mounjaro often leave out

A quoted price for a 5mg pen can mean several different things. It might include the consultation, or it might not. It might include delivery, or charge it separately. It might come with access to a clinical team if you have questions mid-dose, or it might not, meaning a GP appointment if something comes up. These aren't small distinctions.

Repeat prescriptions are another variable. A legitimately safe service re-assesses you before each supply: checking your weight trajectory, reviewing any new symptoms, and confirming the dose is still appropriate. That review takes prescriber time. If a provider is quoting a price that seems to skip these steps, it's worth pausing before you order by midday so a review could be dispatched the same day, and asking what actually happens when you press checkout. The 5mg Mounjaro pen price page steps through these component costs in detail.

On the question of oral alternatives, some patients at this stage of their research are also weighing up the cost of oral tirzepatide options, though the tablet form of tirzepatide is not currently licensed in the UK, worth knowing before any comparison.

Where nume sits on price, and why

We're not the cheapest option. That's a deliberate choice, not an oversight. One price at nume covers your consultation, the prescription, the medicine, and free next-working-day DPD delivery. Aftercare is included, a clinical team available seven days a week, not a contact form. There are no subscriptions, no automatic renewals, and no hidden line items. Every repeat order is reviewed by a prescriber before it's approved, because that's what responsible dispensing requires under GPhC standards.

Our clinical team reviews each application personally, a real prescriber reads your answers, not software. If you order before noon on a working day and your consultation is approved, your pen is dispatched the same afternoon and arrives the next working day. The same-day cut-off before the school run is a genuine logistics commitment, not a marketing line.

You can see current treatment pricing, including the 5mg dose, by starting a consultation at our treatment page, that's where pricing is listed transparently against the full scope of what's included. More detail on how we work is on the about us page if you'd like it.

Why cheapest is the wrong measure for a prescription medicine

For a Prescription-Only Medicine with a documented counterfeit problem, the lowest price on the market raises questions rather than answering them. The MHRA has issued public warnings about fake weight-loss pens (including a raid in 2025 on an illicit UK site producing counterfeit tirzepatide) and advises patients to verify any online pharmacy on the GPhC register before ordering. Sellers offering these medicines without a prescription, or via social media with unverifiable credentials, are a documented safety risk.

Any online pharmacy dispensing Mounjaro legally holds a GPhC premises registration. Ours is 9012878, verifiable directly at the register. That verification step costs nothing and takes thirty seconds. As the NHS tirzepatide medicines page makes clear, this is a medicine that requires ongoing clinical oversight, not a one-time transaction. The right question isn't which price is lowest; it's which service gives you the clinical safety and supply legitimacy a prescription medicine requires. Our FAQs cover common questions about what legitimate private treatment looks like in practice.