BBC Susan McGowan died two weeks after taking tirzepatide – brand name Mounjaro The death of a nurse from North Lanarkshire has been linked to the use of a weight-loss drug recently approved for use on the NHS. Susan McGowan, 58, took two low-dose injections of tirzepatide, known under the brand name Mounjaro, over the course of about two weeks before her death on 4 September. Her death certificate, seen