Reviewed by Dr Sarah Mitchell, PhD · Editorial Board
How to check a UK online pharmacy for GLP-1 supply
GLP-1 is the highest-value POM market in the UK right now, and the unlicensed-supply industry follows the money. This page is the practical pre-purchase checklist for verifying a UK online pharmacy or clinic before you hand over a credit card.
The six-check protocol
1. The dispensing pharmacy is on the GPhC (or PSNI) register
Search the GPhC online register (or PSNI register for Northern Ireland) by pharmacy name. Confirm: name matches, the premises is registered, no current restrictions. If the clinic uses an unnamed “partner pharmacy” or won’t tell you, this check fails by default.
2. The prescriber is on the GMC (or NMC / GPhC IP) register
Look up the prescriber on the GMC online register. Confirm: name matches, current registration, no conditions preventing prescribing in scope. Nurse and pharmacist independent prescribers are also lawful but a clinic should name the individual.
3. There is a real clinical assessment
A 60-second online form is not an assessment. A real GLP-1 assessment covers:
- Medical history (especially diabetes, pancreatitis, gallbladder, thyroid).
- Current medications and interactions.
- Mental-health screening.
- BMI, blood pressure, and (often) baseline bloods.
- Contraindication check (pregnancy, breastfeeding, MEN syndromes, etc.).
- Patient understanding of contraception requirements.
If the clinic offers to skip the assessment, change a yes answer to no, or use a previous prescription without reassessment, walk away.
4. The medicine is a named, brand-licensed product
The clinic should be able to tell you exactly what they will dispense:
- Wegovy (semaglutide for weight management).
- Ozempic (semaglutide for T2DM).
- Mounjaro (tirzepatide).
- Saxenda (liraglutide for weight management).
- Rybelsus (oral semaglutide).
“Compounded semaglutide” or “tirzepatide-equivalent” is not a licensed UK product. See compounded peptides in the UK for why this matters.
5. The supply chain is UK-only
Genuine licensed GLP-1 supply for UK patients flows through UK pharmacies. “Sourced from our EU partner” or “shipped from Turkey/India” is the supply route counterfeit pens have repeatedly used. Don’t accept it.
6. Follow-up exists
A competent clinic builds in titration reviews, side-effect checks, and an adverse-event escalation path. No follow-up means there’s no clinical responsibility being taken — the ‘prescription’ is paperwork around a transaction.
Pricing reality check
Private Mounjaro and Wegovy pricing varies and changes month to month, but there is a market range that genuine UK pharmacies operate within. A quote substantially below that range — often half or less — is a strong counterfeit-supply signal. Counterfeiters compete on price because their cost base is lower (no licensed manufacturing, no PIL, no batch testing). Don’t optimise for the cheapest pen.
Red-flag claims
If you see wording like this on a seller, clinic, or social-media advert, treat it as a warning sign rather than a benefit.
“Doctor-prescribed but we can't share the prescriber's name”
A real prescriber is a named person on the GMC register. Refusing to name them is incompatible with regulated practice.
“UK-registered pharmacy — name on request”
If you need to request it, they're hoping you won't. Real pharmacies surface their registration up front.
“Fill in our 60-second form and we'll dispatch tomorrow”
Skipping clinical assessment is what makes supply unlawful AND unsafe.
“Compounded GLP-1 — UK pharmacy”
‘UK pharmacy’ doesn't validate mass-market compounded GLP-1 supply — see /legal/compounded-peptides-uk.
“Half the price of Wegovy — same molecule”
Strong counterfeit signal. The price gap usually reflects skipped quality assurance.
Sources & further reading
- GPhC — Online registers — pharmacyregulation.org
- GMC — The Medical Register — gmc-uk.org
- PSNI — Pharmaceutical Society of Northern Ireland — psni.org.uk
- MHRA — gov.uk
- Report a problem with a medicine or medical device — gov.uk