Operative since 1987, the North Western database is unique in its ability to reflect trends. Over the years ’90-’92 the number of drug users increased by 68% and new users by 52%. Methadone was prescribed more often and for longer. Reported use of amphetamines, cocaine, ecstasy and hallucinogens rose dramatically. Services face the challenge of coping with an increased ‘traditional’ caseload staying on for longer while responding to new drug trends.