The Vector

More than 12,000 fake weight-loss pens seized in Birmingham

The medicines regulator estimates the value of the seizure at £2 million and warns that the products’ contents cannot be guaranteed.

Officers seized more than 12,000 counterfeit weight-loss pens during a raid in Birmingham on Wednesday, the Medicines and Healthcare products Regulatory Agency announced on Thursday. The operation, conducted with West Midlands Police, also recovered packaging for about 30,000 additional products.

The pens were described as fake retatrutide and tirzepatide products. The MHRA valued the seizure at approximately £2 million, although its announcement did not explain how that estimate was calculated. The additional packaging was reported separately from the completed products recovered at the industrial unit. [MHRA announcement](https://www.gov.uk/government/news/counterfeit-weight-loss-pens-worth-2-million-seized-by-mhra-and-west-mids-police).

The regulator said the seized medicines had not been assessed for safety, quality or effectiveness. Its warning concerned uncertainty about their ingredients and possible contamination. No laboratory findings were published in the announcement, so it does not establish precisely what individual pens contained or whether particular contaminants were present.

Retatrutide has not been authorised for use in the UK, according to the agency. It said products sold as retatrutide outside legitimate clinical trials were being supplied illegally. BBC reporting of the raid also highlighted that ingredients, dosage and manufacturing quality could not be guaranteed in these illicit products. [BBC report, republished by AOL](https://www.aol.com/articles/2m-fake-weight-loss-pens-163626000.html).

Tirzepatide has a different regulatory position. The MHRA authorised the medicine Mounjaro, whose active ingredient is tirzepatide, for adult weight management in November 2023. That authorisation concerns an assessed medicinal product for specified uses; it does not authenticate other products carrying the same ingredient’s name. The Birmingham announcement concerns counterfeit supplies, rather than a new assessment of Mounjaro. [Original authorisation](https://www.gov.uk/government/news/mhra-authorises-diabetes-drug-mounjaro-tirzepatide-for-weight-management-and-weight-loss).

The seizure follows earlier enforcement operations. On 28 May, officers recovered around 12,000 doses of unlicensed weight-loss medicines from an estate near Northampton. Two people were arrested on suspicion of medicines offences. Those arrests were part of the May investigation and should not be confused with the Birmingham operation announced this week. [May enforcement report](https://www.gov.uk/government/news/two-arrested-during-the-mhras-largest-ever-seizure-of-unlicensed-weight-loss-medicines).

A separate announcement in February described the recovery of almost 2,000 doses awaiting dispatch, alongside manufacturing equipment, suspected ingredients and packaging. These earlier quantities were reported as doses, whereas Wednesday’s seizure was counted in pens. They therefore cannot simply be added together as a like-for-like measure of products recovered. [February enforcement report](https://www.gov.uk/government/news/mhra-disrupts-second-manufacturing-facility-suspected-to-be-involved-in-the-manufacture-of-illegal-weight-loss-medicines-in-latest-blow-to-criminal-ne).

The BBC’s coverage recalled an earlier investigation that found products presented as retatrutide being offered through gyms, beauty businesses and social media. That reporting provides context for the wider illicit market. It does not establish that any of those sellers obtained their products from the Birmingham premises or were connected to Wednesday’s raid.

Several questions remain unanswered. The latest MHRA release did not announce arrests or charges, identify customers, or report confirmed injuries linked to this particular seizure. Its figures establish the scale of the goods recovered, but cannot show how many people had previously bought products from the operation or the overall size of the illicit market.

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