The Asian and Pacific region has some of the world's toughest laws against drug abuse and drug trafficking, yet drug use amongst young people is increasing, with the starting age as low as 12 years old in some countries. Issued jointly by UN Economic and Social Commission for Asia and the Pacific (ESCAP) and UN Office on Drugs and Crime, this publication examines how to plan and deliver effective treatment and rehabilitation programmes for adolescent substance users. Sections consider: treatment approaches to youth drug use, analysis of risk and protective factors, examples of successful intervention, treatment and aftercare programmes, and implications for programme development.