Lida Teng, BSc, is a PhD student at the Centre for Pharmacognosy and Phytotherapy, School of Pharmacy, University of London; Debbie Shaw, BSc, is a research scientist at the Medical Toxicology Unit, Guy’s and St Thomas’ Hospital NHS Foundation Trust, London; and Joanne Barnes, PhD, MRPharmS, is associate professor in herbal medicines at the School of Pharmacy, Faculty of Medical and Health Scie...