He was a pioneer of the hospice movement during the 1970s, when he helped palliative care gain recognition as an accepted field of modern medicine.
[1][2] Twycross was educated at St John's School, Leatherhead,[3] and graduated from Oxford University with a BM BCh in 1965.
After completing his MRCP, in 1971 he was appointed a Clinical Research Fellow at St Christopher's Hospice by Dame Cicely Saunders.
During his tenure there, Twycross completed studies on the effectiveness of morphine, diamorphine and methadone in managing cancer pain.
[6] In 2000,[7] Twycross, along with Dr Andrew Wilcock, founded palliativedrugs.com Ltd, to provide "essential independent information for health professionals worldwide about drugs used in palliative and hospice care."