Mounjaro®
Starting from £179.99/mo
Start journey Learn moreHow the transfer process works at each stage, and what to look for in your new provider
Step 1 — Gather your evidence before you move
Before contacting a new provider, take five minutes to collect a few things: a note of your current Mounjaro dose, the date you started treatment, and ideally a record of your starting and most recent weight. If your previous provider sent prescription records or a clinical summary, keep those too. You do not need a formal letter from a GP, but the more evidence you can share, the smoother the transfer.
Why does this matter? A prescriber taking over mid-treatment needs to know they are continuing safely, not guessing. Tirzepatide is titrated in steps from 2.5mg up to a maximum of 15mg, and jumping to a higher dose without a verified weight history creates real clinical risk. Transferring your Mounjaro prescription goes faster when the paperwork is ready.
If you have been on treatment for several months, your recent weight is especially important. Some providers ask you to confirm current weight by video, which is the approach our prescribers take. It takes less than a minute and means no one is dosing you based on a figure written months ago by someone else.
Step 2, Assess whether the new provider is legitimate
This is where many people feel a bit unsure, and that is understandable. The market for weight-loss injections has expanded rapidly, and the quality of providers varies more than it should. A few things to look for.
First, check that the pharmacy is registered with the General Pharmaceutical Council. You can search the GPhC register directly at pharmacyregulation.org/registers; any legitimate online pharmacy will appear there. Second, a prescriber should review your case personally before your first order, if the website offers to match your current dose without any clinical check, treat that as a warning sign rather than a convenience. Third, confirm that medicines are sourced through the licensed UK supply chain. The MHRA has repeatedly warned about counterfeit tirzepatide pens being sold online, and in 2025 seized approximately 20 million doses of illegally traded weight-loss medicines worth around £45 million, including the first UK raid on an illicit Mounjaro manufacturing site. Knowing how to spot unsafe providers protects you at every stage of treatment.
At nume, sorry. At nume, our GPhC registration number is 9012878, verifiable at the register linked above.
Step 3, What a responsible new provider will ask you for
Once you have chosen a provider and submitted your consultation, a prescriber assessing a transfer patient will typically want to confirm: your current dose, evidence that you have been tolerating that dose well, your most recent weight, and your reason for switching. That last point is not an interrogation, it helps a prescriber understand whether there are clinical factors worth knowing about, such as a side-effect pattern that was not being managed well.
The table below summarises what you should expect a responsible provider to check, versus what a less rigorous one might skip.
| Check | What a responsible provider does | Red flag if absent |
|---|---|---|
| Current dose verification | Asks for evidence, prescription record, packaging photo, or a summary from the previous provider | Matches dose on your say-so alone |
| Recent weight confirmation | Live video weight check or recent documented weight (within a few weeks) | Accepts a figure you type in without verification |
| Clinical review before first order | A named prescriber reads your answers the same day and approves or flags for further information | Automated or instant approval |
| Dose-increase evidence at each step | Requires weight and tolerability evidence before moving up the titration schedule | Allows increases without clinical check |
| GP notification | Notifies your GP in line with GPhC guidance | No mention of GP communication |
The landscape of Mounjaro providers in the UK has grown quickly, and these checks separate the careful from the careless. See also NHS England's guidance on weight-management injections, which outlines the clinical standards expected of any prescribing service.
Step 4, Continuing at your current dose after the transfer
Most people switching providers want to carry on at the dose they are already on, not go back to the beginning. That is clinically reasonable if the evidence supports it. Once a prescriber has reviewed your history and confirmed your current weight, they can prescribe at your established dose. You do not lose your progress by moving.
What you might lose, depending on where you have been, is the aftercare. Some providers are good at dispensing pens and less attentive when a question comes up mid-cycle. Before you transfer, think about what support actually matters to you: responses to clinical queries, clear guidance when a dose increase is due, or simply being able to reach a person rather than a chatbot. Comparing what UK providers actually include is worth doing before you commit.
On the cost side, prices across the market vary considerably by dose and by what is bundled in. The cost of Mounjaro in the UK page sets out the context honestly. At nume, at nume, one price covers everything: consultation, prescription, delivery and aftercare, with no subscription and no auto-renewal. Which provider suits your clinical situation specifically is a decision our prescribers make with you.
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