If you are about to buy Mounjaro or Wegovy online, one free check protects you more than any review or star rating: a GPhC register check. The General Pharmaceutical Council (GPhC) publishes the official list of every pharmacy legally allowed to dispense medicines in England, Scotland and Wales — and you can search it yourself, for free, in about two minutes. Learn to do it and you shut out the great majority of scams and counterfeit sellers in a single move.
This guide walks you through the GPhC register check step by step, shows you exactly what a genuine entry should contain, and explains the extra checks that separate a real prescriber from a slick-looking fake. It is information only, not medical advice — a prescriber decides whether a prescription-only medicine is right for you.
A legitimate UK online pharmacy names a real, GPhC-registered pharmacy, displays a clickable registration logo that links to its live register entry, and requires a consultation before prescribing. No register entry, no prescription, no sale — walk away.
Why a GPhC register check matters most
Reviews can be bought and ratings faked. A convincing website costs almost nothing to build. The one thing a scam seller cannot manufacture is a genuine entry on a regulator's register — because that register is controlled by the GPhC, not by the seller.
Two registers cover UK weight-loss providers, and a trustworthy provider is often on both:
- The GPhC register lists every pharmacy legally allowed to dispense medicines in Great Britain. Search it for the pharmacy that will fill your prescription.
- The CQC (Care Quality Commission) regulates the clinical service running the consultation and prescribing in England. Many reputable providers hold both registrations.
Mounjaro (tirzepatide) and Wegovy (semaglutide) are prescription-only medicines. Any site that sells them without a consultation is breaking the law — so a register check and a "is a prescription required?" check together rule out most illegal sellers before you spend a penny.
How to do a GPhC register check, step by step
The GPhC register is public, free and needs no account. Here is the walkthrough.
1. Go to the official register directly
Type the address yourself rather than clicking a link the seller gives you: pharmacyregulation.org/registers. A dishonest site can link a fake "verification" page, but it cannot fake the regulator's own domain in your browser's address bar.
2. Find the pharmacy's real trading name
Check the website footer or "About" page for the registered pharmacy name and address. Large brands often trade under a parent name — an online doctor service may be dispensed by a separate pharmacy. Note that exact name and, ideally, the postcode.
3. Search the register for the pharmacy
Use the "Registered pharmacies" search and enter the name or postcode. A genuine result shows the registration number, the registered address, the superintendent pharmacist, and — crucially — that the registration is current, not lapsed or removed.
4. Check the internet pharmacy logo
Legitimate online pharmacies display a green cross "distance selling" or voluntary registration logo. Click it. A real logo links back to the pharmacy's live register entry. A fake is a flat image that links nowhere — or straight back to the seller's own page.
5. Confirm every detail matches
The name, address and status on the GPhC entry should match what the website claims. A "UK" address that turns out to be a serviced office abroad, or an entry for a completely different business, is a red flag. Stop there.
If a site lets you add Mounjaro or Wegovy to a basket with no consultation and no prescriber decision, it is operating illegally — and whatever arrives in the box is not something you should inject. This single test rules out most illegal sellers on its own. Read our companion GPhC register walkthrough for more detail.
What a genuine GPhC entry looks like
When your register check returns a real pharmacy, you should see all of the following:
- Registration number — a unique premises number issued by the GPhC.
- Registered address — a physical UK address, not a PO box in another country.
- Superintendent pharmacist — the named pharmacist legally responsible for the premises.
- Current status — the entry is active, not "removed" or expired.
If any of these are missing, blank, or contradict the website, treat it as a fail. Every provider we list at Trusted Weight Loss clears these checks; the sellers we warn against do not.
Legitimate pharmacy vs illegal seller: what the check reveals
Put a genuine UK provider next to a typical scam and the differences are stark.
| Check | Legitimate UK pharmacy | Illegal / fake seller |
|---|---|---|
| GPhC register entry | Named pharmacy, current registration, verifiable number | Not listed, or a mismatched / lapsed entry |
| Prescription required | Consultation and prescriber decision before supply | "No prescription needed" — buy straight to basket |
| Registration logo | Green cross logo links to the live register entry | Flat image, broken link, or no logo at all |
| UK contact details | Real UK address, phone, named superintendent pharmacist | Web form only, overseas address, or no address |
| Payment | Card payment with normal consumer protection | Crypto, bank transfer or gift cards pushed |
| Price | In line with the market (see our verified table) | "Too good to be true" — far below every registered seller |
How price fits into your check
A genuine pharmacy has real costs — the medicine itself, a prescriber, dispensing and cold-chain delivery. That is why registered UK Mounjaro prices cluster within a predictable band. Across the pharmacies we track, the 2.5 mg starter pen ranges from around £131 to £220 for four weeks — a genuine £89 spread for the identical pen, but all recognisably in the same ballpark.
Anything advertised far below that floor should raise your guard, not your hopes. Our recommended provider, The Weight Clinic, is a GPhC-registered pharmacy that starts Mounjaro at £125 for the first month (then £160 for four weeks), applies £35 off your first order with code NEWME, refunds you if the prescriber declines to prescribe, and runs monthly video reviews. Those are the hallmarks of a provider that expects to be checked — not one hoping you won't.
After the register check: a few more safeguards
Passing the GPhC register check is the biggest single hurdle, but pair it with a little extra caution:
- Know what a real pen looks like — see how to spot fake Mounjaro and how to spot fake Wegovy.
- Be sceptical of anything sold through direct messages or ads — our roundup of social-media injection scams shows the patterns.
- Ask the right questions up front, using our 10 questions before buying a GLP-1 online.
If you experience side effects from any weight-loss medicine — common ones include nausea, diarrhoea, constipation and tiredness — you can report them to the MHRA through the Yellow Card scheme at yellowcard.mhra.gov.uk, and speak to your prescriber.
The Weight Clinic is our recommended GPhC-registered provider: Mounjaro from £125 for the first month with code NEWME (£35 off), a refund if the prescriber declines, and monthly video reviews.
Frequently asked questions
What is the GPhC register?
The General Pharmaceutical Council register is the official, public list of pharmacies and pharmacy professionals legally allowed to dispense medicines in England, Scotland and Wales. You can search it free at pharmacyregulation.org/registers with no account.
How do I check a pharmacy on the GPhC register?
Type pharmacyregulation.org/registers into your browser, find the pharmacy's registered trading name in its website footer or About page, then search the "Registered pharmacies" section by name or postcode. A genuine entry shows a registration number, registered address, superintendent pharmacist and a current status.
What if the pharmacy isn't on the register?
If a site selling Mounjaro or Wegovy has no matching GPhC entry, a lapsed or removed entry, or details that don't match its website, do not buy. An unregistered seller cannot legally dispense prescription medicines in Great Britain, and you cannot be confident what you would receive.
What is the difference between the GPhC and the CQC?
The GPhC regulates the pharmacy that dispenses your medicine. The CQC regulates the clinical service running the consultation and prescribing in England. Many reputable weight-loss providers are registered with both — check the register that applies to the part of the service you're using.
Is a green cross logo enough to prove a pharmacy is legitimate?
Not on its own. A real registration logo links to the pharmacy's live register entry when clicked. A fake is often a flat image that links nowhere. Always confirm by searching the GPhC register directly rather than trusting a logo alone.
Can a price tell me a seller is fake?
A price far below every registered pharmacy is a warning sign. Registered UK Mounjaro starter pens range from roughly £131 to £220 for four weeks. Anything dramatically cheaper, especially paired with "no prescription needed" or crypto payment, points to a counterfeit or illegal seller.