The ASSIST project - Alcohol, Smoking and Substance Involvement Screening Test
There is substantial evidence for the benefits of screening and brief intervention in primary health care for alcohol problems. However, there is a need for screening and brief interventions with cross-cultural relevance for substances other than alcohol or tobacco, such as cannabis, amphetamines, cocaine and opiates.
The Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) was developed for the World Health Organization (WHO) by an international group of substance abuse researchers to detect and manage substance use and related problems in primary and general medical care settings. Primary health care professionals are well-positioned to provide interventions targeted to all substances irrespective of their legal status.
Related activities:
Screening and brief intervention for alcohol problems in primary health care


This manual is a companion to ‘The Alcohol, Smoking and Substance Involvement Screening Test (ASSIST): manual for use in primary care’. The...

Substance use problems can arise as a result of acute intoxication, regular use or dependence - and from the way in which substances are used. This guide...
Project phases
The ASSIST has undergone significant testing in three sequential phases (I, II and III) to ensure that it is feasible, reliable, valid, flexible, comprehensive and cross-culturally relevant, and able to be linked to brief interventions. ASSIST is currently in its fourth Phase aimed at world wide dissemination. See more information about the four phases in the right column.