Mark Horowitz, BA, BSc(Med), MBBS(Hons), MSc, GDipPsych, PhD, is a trainee psychiatrist and Clinical Research Fellow at North East London NHS Trust, where he runs a psychiatric drug deprescribing clinic. He is an Honorary Research Fellow at University College London and he co-authored the Royal College of Psychiatrists guide on 'Stopping antidepressants'. He has authored multiple academic papers on how to safely stop psychiatric drugs in high impact journals, and lectured on this topic around the world to doctors, pharmacists and the public. He was commissioned by Health Education England to prepare a module on safe deprescribing of antidepressants for prescribers in the National Health Service (NHS). He has lived experience of stopping psychiatric drugs which informs most of his work. David Taylor, PhD, FFRPS, FRPharmS, FRCPEdin, FRCPsych(Hon), is Director of Pharmacy and Pathology at the South London and Maudsley NHS Trust and Professor of Psychopharmacology at King's College, London. He is the lead author of the Maudsley Prescribing Guidelines in Psychiatry and Editor-in-Chief of Therapeutic Advances in Psychopharmacology. He co-authored the Royal College of Psychiatrists guide on 'Stopping antidepressants'. His pharmacy department ran a medication help-line for a decade which fielded queries largely related to withdrawal from psychiatric drugs. He has personal experience of stopping psychiatric drugs.