Demand for weight loss medication has never been higher, and where demand outpaces supply, a black market usually follows.
Recent reporting, including a BBC investigation into the counterfeit weight loss drug trade, has highlighted a troubling trend: people turning to unregulated sellers on social media, in gyms and beauty salons, and on so-called “research peptide” websites to get hold of drugs like retatrutide – a medication that is still going through clinical trials and has not been licensed for use anywhere in the UK.
At McMinns Pharmacy, we understand why people are looking for faster or cheaper routes to weight loss treatment.
But buying medication outside a regulated pharmacy setting isn’t just against the rules; it can be genuinely life-threatening.
Here’s what’s actually happening in weight loss medication right now, why the black market is so dangerous, and how to access real, licensed treatment safely.
Developments in weight loss medication
The last few years have transformed medical weight management.
GLP-1 receptor agonists such as semaglutide (Wegovy) and tirzepatide (Mounjaro) have moved weight loss treatment from a last resort to a mainstream, pharmacist-supported option for people with obesity or weight-related health conditions.
Manufacturers are now racing to develop the next generation of these treatments, including “triple agonist” drugs designed to work on three separate hormone pathways at once for potentially greater results.
Retatrutide is the best-known of these next-generation drugs.
Eli Lilly’s Phase 3 TRIUMPH trial programme has reported strong results, with the manufacturer targeting regulatory submission in the US in 2027.
That means retatrutide is, at the time of writing, unapproved anywhere in the world and available only to patients enrolled in clinical trials.
It is not licensed by the MHRA, cannot be legally prescribed in the UK, and has no established real-world safety profile outside a research setting.
That hasn’t stopped a black market from forming well ahead of any approval.
Investigations have found retatrutide-labelled products being sold online and through informal channels across the UK, marketed to people who understandably want early access to a promising treatment – without any of the safeguards that come with genuine clinical trials or regulated prescribing.
The dangers of taking unlicensed medication
This is where the real danger lies.
When a medication hasn’t been through the full licensing process, there is no independent verification of what’s actually in the product, how it’s been manufactured, or whether it’s safe at all.
Unlicensed and counterfeit weight loss products bought online or through informal sellers carry several serious risks:
- Unknown contents. Testing of seized “black market” weight loss products has repeatedly found them to contain the wrong drug entirely, incorrect concentrations, or contaminants. In one widely reported case, a product sold as retatrutide was found to actually contain semaglutide at roughly eight times the approved dose. The user suffered a torn oesophagus after severe, uncontrolled vomiting, an injury doctors describe as almost always fatal without emergency treatment.
- Incorrect or unsafe dosing. Many of these products are supplied as powders that need to be mixed at home, with no professional guidance on reconstitution or dosing. Small errors can lead to significant overdoses.
- No clinical oversight. A genuine pharmacy or prescriber checks your medical history, current medications, and suitability before you start treatment, and monitors you as your dose increases. Black market sellers offer none of this. No eligibility checks, no review of interactions with other medicines (a particular risk for people with diabetes on insulin or other glucose-lowering drugs), and no monitoring for side effects.
- Non-sterile products. Injectable products bought outside the regulated supply chain carry a real risk of contamination and infection.
Because these products sit entirely outside the regulatory system, there is also nowhere to turn if something goes wrong; no traceability, no manufacturer accountability, and no formal route to report adverse effects through the MHRA’s Yellow Card Scheme.
Why it matters to use a genuine pharmacy
Every medication McMinns Pharmacy dispenses is licensed, sourced through the legitimate UK pharmaceutical supply chain, and provided as part of a proper medical weight management programme – not simply sold to anyone who asks for it.
That means a consultation with one of our pharmacists to check your suitability, including your BMI, medical history and any existing conditions.
It means a treatment plan tailored to you, with dosing that follows the manufacturer’s licensed guidance and is adjusted gradually under professional supervision.
And it means ongoing support, so if you experience side effects or have questions as you progress, there’s a qualified pharmacist to speak to; not a social media seller who disappears once payment has gone through.
As a General Pharmaceutical Council registered pharmacy, we’re held to professional and legal standards that black market sellers simply aren’t.
When it comes to a medication you’re injecting or taking daily, that oversight isn’t red tape. It’s the thing standing between you and the kind of harm we’re seeing reported in the news.
Recent real releases: the Wegovy pill and Foundayo
It’s worth being clear about what genuine progress in weight loss medication actually looks like, because it’s easy to confuse “new” with “unlicensed.”
In June 2026, the MHRA approved a tablet form of Wegovy (oral semaglutide) – only the third country in the world to license an oral GLP-1 for weight management.
Clinical trial data showed patients achieved around 13.6% weight loss over 64 weeks, compared with 2.4% on placebo.
The tablet won’t suit everyone (it needs to be taken daily on an empty stomach with specific timing), but for people who prefer to avoid injections, it’s a legitimate, MHRA-approved option.
More recently, in August 2026, the MHRA authorised Foundayo (orforglipron) – making the UK the first country in Europe to license this medication.
Foundayo is a once-daily tablet that, unlike the Wegovy pill, can be taken at any time of day without food or water restrictions, and is licensed both for weight management and for improving blood sugar control in type 2 diabetes.
As with any new medication, it comes with common side effects such as nausea and digestive upset, and the MHRA continues to monitor its safety closely.
Both of these are genuine examples of how far weight loss medication has come and both reached patients through the proper regulatory process, with real clinical trial evidence behind them.
That’s the same standard we’d want to see before recommending anything to our own patients, and it’s precisely what unlicensed black market products skip entirely.
Book a consultation with McMinns Pharmacy
If you’re considering medical weight loss support, the safest first step is a conversation with a pharmacist – not an unregulated seller online.
Our team can talk you through which licensed treatments, including Wegovy, Mounjaro, Saxenda and the newest options as they become available, might be suitable for you, and support you safely from your first dose onwards.
Book a weight loss consultation with McMinns Pharmacy today. You can also call us on 01698 372 917, or pop into the pharmacy at 19 Main Street, Wishaw.
Your health is worth doing properly.
Frequently asked questions
Is retatrutide available in the UK?
No. Retatrutide is still in clinical trials and is not licensed for use anywhere in the world, including the UK. Any product sold as retatrutide outside a clinical trial is unregulated and cannot be verified as safe.
How can I tell if a weight loss medication is genuine?
Genuine weight loss medication is only available on prescription from a GPhC-registered pharmacy or a regulated prescriber, following a proper consultation. If a seller doesn’t ask about your medical history or requires no prescription, that’s a strong warning sign.
What should I do if I’ve already taken an unlicensed weight loss product?
Speak to a pharmacist or your GP as soon as possible, particularly if you’re experiencing side effects. You can also report suspected counterfeit or unlicensed medicines to the MHRA via the Yellow Card Scheme.
This article is for general information and does not replace personalised medical advice. Speak to a pharmacist or your GP before starting any weight loss treatment.
Sources: Retatrutide fakes are flooding the UK black market, The retatrutide black market: Patient safety groups warn, Counterfeit weight-loss drug incident (UNILAD), UK first in Europe to authorise orforglipron (GOV.UK), Lilly’s retatrutide Phase 3 results, McMinns Pharmacy Wegovy pill article, McMinns Pharmacy weight loss clinic