Abstract
Six yean ago, Edinburgh's community drug problem service established a model of shared care between drug specialists and general practitioners who were encouraged to prescribe oral methadone and other drug substitutes in an attempt to reduce drug injecting and the spread of HIV in a city with a high seroprevalence rate. Of Edinburgh's GPs, 70% now prescribe for around 1200 drug users who have altered their pattern of drug taking, with a marked shift away from injecting drug use, and towards oral pharmaceutical drugs. HIV rates among new referrals to the service have fallen from 21% to 8%.