Data are presented on benefits observed in the immediate post-recruitm
ent phase of outpatient treatment of opiate addicts with oral methadon
e. On re-interview by independent researchers at one-month, levels of
drug use had reduced, with weekly intake of heroin reducing to a fifth
, and of cocaine to a quarter (with significant re ductions in both fr
equency of use and in amounts used per occasion). Significantly fewer
opiate addicts were still injecting at follow-up, and those who were i
njecting were doing so less often. Measures of both physical and psych
ological health showed significant improvements over the first month o
f methadone treatment. A trend of reduction in involvement in acquisit
ive crime was also found. The finding of such wide-spread benefits so
early within methadone treatment is encouraging in view of the recent
increased provision of methadone programmes in the UK. However, the ea
rly acquisition of such benefits should prompt more rigorous study of
the extent to which these changes are associated with the prescribed d
rug, the associated programme or the process of treatment engagement.