“…While some were hospital based (Adelekan & Adeniran, 1988;Ohaeri & Odejide, 1991), others were community based (Anumonye, 1980;Onibokun et al, 1999). Some studies have focused on atrisk groups such as secondary school students (Adelekan, 1989;Adelekan et al, 2001), undergraduates (Frank & Edward, 1999;Adelekan et al, 2000) health workers (McAuliffe & Rohman, 1986). As a result of these studies, various drugs of abuse such as alcohol, tobacco, cannabis, stimulants, cocaine, heroin, hallucinogens e.t.c.…”