Llyr qualified from the Welsh School of Pharmacy in Cardiff in 1997. He undertook his pre-reg with a small independent group in North Wales. He has worked in as a branch manager for Rowlands Pharmacy, as a Health Board prescribing adviser and a primary care pharmacist in GP practices. In 2003 he purchased his first community pharmacy, and by now co-owns, with another four pharmacists, a small independent group of three pharmacies based in North West Wales. He has been a previous member of the North Wales CPW committee and on the Welsh Pharmaceutical Committee. Recently he qualified as an independent prescriber and is enthusiastic to further develop community pharmacy based clinical services.