Professor Atholl Johnston
BSc, BA, MSc, PhD, CSci, FBPharmacolS, FRCPath
Professor Johnston is Professor of Clinical Pharmacology at Barts and The London School of Medicine and Dentistry, Queen Mary University of London. He is also a Director of Analytical Services International Ltd. and Director of the ASI laboratory at St George's - University of London, where he is visiting Professor of Forensic Pharmacology and Toxicology.
For his first degree he read Biochemistry and Toxicology at the University of Surrey during which he spent a year of research with Sandoz AG, Basel, Switzerland.After graduating he spent two years working with Professor David Bowen at Charing Cross Hospital Medical School in the Department of Forensic Medicine and Toxicology. He then joined Dr John Hamer at St Bartholomew's Hospital where he undertook his research training in clinical pharmacology with the late Professor Paul Turner and gained his doctorate in pharmacology from the University of London. Professor Johnston also holds a degree in Mathematics and Statistics and a Masters degree in Applied Statistics and is a Fellow of the Royal College of Pathologists.
He has more than 35 years’ experience in the measurement of drugs as a guide to therapy and has co-organised, with Professor David Holt, proficiency testing schemes for the measurement of immunosuppressive drugs. Professor Johnston is the author over 265 articles in peer review journals and of many invited contributions and book chapters. He is a frequent speaker on a variety of issues relating to pharmacokinetics and dynamics and drug quality and patient outcomes.His research interests are in drug use and abuse; drug quality; clinical trial design and statistical data analysis; modelling pharmacokinetics and pharmacodynamics; and the optimal use of drugs.
Professor Johnston has written expert reports on drug use and abuse for submission to the National Institute for Clinical Excellence (NICE), and many national drug regulatory agencies including the MHRA (UK), EMA (EU), FDA (USA), TGA (Aus) and Health Canada. He regularly gives expert testimony in the Courts on matters of the influence of drugs in crime, drugs and alcohol on driving impairment, and the cause of death in HM Coroners’ Courts.

