On 14 October, the Medicines and Healthcare products Regulatory Agency (MHRA), working with West Midlands Police, seized over 12,000 fake weight-loss pens from an industrial unit in the city.
Worth approximately £2 million, the haul also included packaging for around 30,000 additional products.
For people seeking help with their weight, the warning is clear: convincing packaging and professional branding cannot establish whether a medicine is genuine.
Tim Duffield, Head Intelligence at the MHRA’s Criminal Enforcement Unit told That'sd Health: "We are tackling the organised criminal gangs whose illegal trade in unauthorised medicines puts people at risk of serious harm.
"Our officers seized around £2 million worth of fake weight loss medicines from a filthy warehouse on an industrial estate. These products have not been assessed for safety, quality or effectiveness, and there is no guarantee of what they contain or whether they have been contaminated with harmful substances.
"Retatrutide has not been authorised for use in the UK. Products being sold as retatrutide outside legitimate clinical trials are being supplied illegally and could pose serious risks to public health.
"We urge people to avoid buying weight-loss medicines from unregulated sources. Anyone considering GLP-1 treatment should speak to a healthcare professional and only obtain medicines from a registered pharmacy against a valid prescription."Boo Dhaliwal, pharmacist and chief executive of Pharmacy Planet, told us online pharmacies can make healthcare more accessible, convenient and discreet. However, patients need to understand the difference between a registered pharmacy and an illegal seller.
“If the trainers are fake, you've wasted your money. If the medicine is fake, you could be putting your health, or even your life, at risk,” he warns.
Counterfeit products may contain incorrect doses, undeclared substances or harmful contaminants. Their contents cannot be trusted, however closely they resemble legitimate treatments.
Before ordering medicines online, take these five precautions:
1. Check the pharmacy’s registration. For pharmacies in England, Scotland and Wales, use the General Pharmaceutical Council’s official register. In Northern Ireland, check with the Pharmaceutical Society of Northern Ireland. Never rely solely on a logo displayed on a seller’s website.
2. Expect a proper clinical assessment. Prescription-only weight-loss medicines require a valid prescription. A prescriber should assess whether treatment is appropriate, consider your medical history and discuss benefits and risks. Offers to bypass these checks are a warning sign.
3. Identify the business. Look for a registered pharmacy address and accessible contact details. Check that these match the regulator’s records.
4. Question unrealistic promises. Guaranteed results, unusually cheap treatments and pressure to buy immediately should prompt caution.
5. Avoid informal sellers. Do not buy weight-loss injections through private messages, unregulated social media accounts or other sellers whose credentials you cannot verify. The MHRA advises obtaining these medicines through legitimate pharmacies following consultation with a healthcare professional.
Safe online healthcare includes professional advice, appropriate prescribing and ongoing support. Those safeguards matter just as much online as they do at your local pharmacy.
If you suspect a medicine is counterfeit, seek advice from a pharmacist or doctor. Consult the MHRA’s #FakeMeds guidance and report suspected counterfeit products or side effects through its Yellow Card scheme.




