Is a simple injection really that effective a treatment for obesity? Ozempic has already taken the medical world by storm, and now another is about to become available on the Irish market. But how do these drugs work, who are they for, and are they even that new at all? Professor Francis Finucane, a consultant endocrinologist at Galway University Hospitals, joins us to look at why these drugs are such game changers, and how it could lead to a shift in how society views the treatment of obesity.