After medical school, Russell worked in various acute hospital rotations. In 1986, he joined the staff of, what was then, the Glasgow Homeopathic Hospital. The hospital, at that time, was a 24-bed inpatient unit, with busy outpatient departments on three sites in the city. He passed the MFHom examination in London in 1987 and completed GP Vocational Training in 1989 while continuing to provide weekly sessions at the outpatient clinics of GHH. In 1994, following a two-year Consultant position at GHH, he was appointed Director of Education and Honorary Consultant at the former Royal London Homeopathic Hospital. He co-directed the Academic Department at RLHIM with Peter Fisher (Research) for six years and then held a variety of other academic and clinical positions there over the following 19 years - while also running both NHS and Private Homeopathy clinics in Scotland. Russell has taught internationally in many European countries, as well as in Canada, Japan, Russia and the USA.
Russell was elected to Fellowship of the Faculty of Homeopathy in 2003 and was Dean of the Faculty between 2010 and 2014. For the past 11 years, he has been Clinical Lead for the Homeopathy Service at the Royal Victoria Hospital (NHS) in Dundee, Scotland. He is a member of the Faculty's Academic Board and sits on the Education Subcommittee of the European Committee for Homeopathy. Over the past six years, he has authored and edited one of the Faculty's first accredited online Membership Courses in Medical Homeopathy, delivered by the Centre for Integrative Medical Training. The entire course has now successfully run for two complete student cohorts and it celebrated its first MFHom 'graduates' in 2023.
In something of a parallel universe, Russell has a second degree in music and has sung more than thirty principal roles for various opera companies around Scotland, including title roles in Macbeth and Nabucco. At weekends, he is either to be found at his piano, or in his workshop repairing and restoring vintage audio equipment.