Mounjaro®
Starting from £179.99/mo
Start journey Learn moreWhat the switch actually involves — and what to compare before you move
You're already on Mounjaro, something isn't working, and you're weighing your options
Maybe your current provider takes days to respond to aftercare questions. Maybe a dose increase stalled in the review queue, or you realised mid-way through your second pen that there's a subscription charge you didn't notice on sign-up. Whatever brought you here, the frustration is reasonable, finding out a service doesn't match its promises is annoying, and switching feels like more admin you didn't budget for.
The good news is that changing Mounjaro provider is less complicated than most people expect. Mounjaro (tirzepatide) is a prescription-only medicine regulated by the MHRA, which means any legitimate provider must carry out a full clinical assessment before issuing a new prescription. There's no prescription to "port". What that actually means in practice: you fill in a new consultation, your new prescriber reviews your answers, confirms your current dose against documented evidence (a recent photo of your pen, a delivery confirmation, or similar), and if everything checks out clinically, a new prescription is written. If you want a fuller picture of what the process involves, our guide to switching Mounjaro providers covers the most common questions people have before they commit. The step-by-step process for changing provider is short once you know what to prepare.
One thing worth checking before you switch: make sure the provider you're moving to is registered on the GPhC pharmacy register. You can verify any online pharmacy on the GPhC register in about thirty seconds. It's the single most important quality check available to you.
What to compare between providers, a factual reference
Price is the most visible variable, but it isn't the only one that matters for a prescription medicine. The table below covers the factors that actually affect safety and experience.
| Factor | What to look for |
|---|---|
| Clinical review | Is every consultation reviewed by a named, GPhC-registered Independent Prescriber? Or is initial approval automated? |
| Dose-increase policy | Does the provider require evidence before increasing your dose? This is a safety standard, not an obstacle. |
| Aftercare availability | Is clinical support available 7 days a week, or weekdays only? Side effects don't keep office hours. |
| Pricing transparency | Does the headline price include prescription, delivery and aftercare, or are those added at checkout? Market prices have shifted since Eli Lilly raised UK list prices in September 2025, with private monthly costs typically ranging roughly £149–£375 by dose and provider (as widely reported). |
| Supply chain | Does the pharmacy source through the licensed UK supply chain (authorised Eli Lilly relationships)? This matters for authenticity, the MHRA has warned publicly about counterfeit weight-loss pens sold online. |
| Subscription model | Are you locked in, or can you order when you need to without auto-renewal? |
A thorough comparison of Mounjaro providers in the UK covers how these factors play out across the market.
What a switch to nume looks like in practice
At nume, every consultation for a transfer patient is reviewed personally by one of our GPhC-registered Independent Prescribers, the same day, before 12pm cut-off. You'll be asked to provide evidence of your current dose: a photograph of your most recent pen, a delivery confirmation, or a previous prescription document. That step exists because issuing a higher dose than someone's body has been titrated to is a genuine clinical risk, not a box-ticking exercise.
Once your prescriber confirms the evidence and approves the prescription, your next pen is dispatched the same day and arrives the next working day via DPD tracked delivery, in plain unbranded packaging. There's no subscription. Every repeat order gets its own clinical re-review before dispatch, you're not on an auto-pilot billing cycle. Our clinical team's approach is built around that individual review at each stage.
We're deliberately not the cheapest provider. What the price includes is the consultation, prescription, delivery and seven-day aftercare, no extras added at checkout, no ongoing commitment. If that structure suits you, check your eligibility and start a free consultation. If you want to read more about how the process works first, the overview of Mounjaro providers goes into detail on what separates services at the clinical level.
What stays the same regardless of who you switch to
Mounjaro's licensed starting dose is 2.5mg, that's fixed in the SmPC and no legitimate prescriber can skip it for a new patient. As a transfer patient continuing an established dose, your prescriber is deciding whether your documented titration history supports continuing at your current level, not restarting you from scratch. The NHS patient information for tirzepatide covers what the medicine does and what to expect; NICE's appraisal (TA1026) sets the clinical eligibility framework that all UK prescribers work within.
The eligibility criteria don't change between providers either: Mounjaro is licensed for adults with a BMI of 30 or above, or 27 and above with at least one weight-related condition such as high blood pressure, high cholesterol or type 2 diabetes. Lower BMI thresholds apply for some ethnic backgrounds under UK guidance. BMI alone isn't the whole picture, the prescriber's assessment considers your full health profile, which is why the clinical review step can't be skipped or automated.
Which provider suits your situation is ultimately a clinical decision, and a good prescriber will tell you honestly if the switch makes sense for you. You can explore how Mounjaro works and what to expect from treatment before making any decision, or browse what affects Mounjaro pricing in the UK if cost is your main consideration.
Looking to start your weight loss journey?
Take a quick eligibility quiz to explore your options and see how we can support you.