Fake medicines are illegally produced products that may contain incorrect ingredients, no active ingredients, or harmful substances.
As a precautionary measure, the Medicines and Healthcare products Regulatory Agency (MHRA) is contacting certain individual patients to make them aware of a small possibility that they may have been dispensed a fake Mounjaro (tirzepatide) KwikPen 15mg solution for injection for weight-loss management from The Private Pharmacy Clinic in Birmingham.
All the affected fake pens identified to date are 15mg pens with the batch number: D873576 dispensed by this pharmacy.
This is a legitimate batch number for genuine Mounjaro KwikPen 7.5mg, and pens at this strength are not impacted.
Dr Alison Cave, Chief Safety Officer at the MHRA said:
"Check the batch number and strength of your KwikPen. If you have one of the affected pens, stop using it straight away. Please report it to the MHRA by emailing
