Studies of gay male methamphetamine users who are also HIV-positive indicate that 90% reported that their motivation for use was to enhance sexual pleasure.
Similar to alcohol, moderate doses of GHB can cause feelings of relaxation, euphoria, and inhibition much like alcohol.
Smoking crack cocaine can produce particularly aggressive paranoid behavior in certain users.
Spending by the alcohol industry for advertisements concerning alcohol on T.V. grew by 22% in 2002, to over than $990 million.