John is a registered pharmacist (B.Sc. (Pharm); MPharm) with experience working in both hospital and community settings. He is a current SPHeRE and Irish Research Council Government of Ireland PhD scholar based in the Royal College of Surgeons in Ireland. John’s PhD research is focussed on the Pharmacoepidemiology and Pharmacoeconomics of Drug-Drug Interactions in Older Community-Dwelling Adults. His PhD supervisors are Prof Kathleen E. Bennett and Dr Caitriona Cahir.A member of the EMeRGe research group, Johns’ research interests include: pharmacoepidemiology; pharmacoeconomics; health-outcomes research; drug utilisation research; pharmacovigilance; and the utility of data science to improve medication safety.John has previously worked with the Health Products Regulatory Authority (medicines regulator for Ireland) to examine the impact of an EU-wide regulatory intervention on the rate of valproate use among women of child-bearing potential in Ireland. He is currently collaborating with European research colleagues to examine the prevalence of ‘severe’ drug-drug interactions in older community-dwellers across Ireland, Italy, and Spain.ORCID: https://orcid.org/0000-0002-3944-8326