Weight loss jabs like Mounjaro and Wegovy have now been linked to at least 216 UK deaths, the Daily Mail can reveal. Close to 8,000 of these Mounjaro reports concerned women. The popular drugs are known as GLP-1 agonists, and work by mimicking appetite-suppressing hormones released by the gut after eating. Patients taking Mounjaro (tirzepatide), like with any other prescription medicine, may experience adverse events. 'Mounjaro (tirzepatide) should only be used when prescribed by a healthcare professional.