1. Volatile substance abusers are a heterogeneous population despite some demographic and social characteristics which appear similar. 2. Though predominantly an adolescent group activity, adult cases have been reported. Family disruption, alcohol misuse and antisocial behaviour feature prominently. 3. Evidence currently available suggests that only a minority of cases progress to illicit drug use; however a review of literature reveals serious discrepancies. 4. Further research of a longitudinal nature using standardized criteria of psychiatric morbidity and social adjustment and long-term follow-up is indicated to examine the extent of progression to heavy alcohol or illicit drug use.