, is a psychostimulant of the phenethylamine and amphetamine class of psychoactive drugs . Methamphetamine increases alertness, concentration, energy, and in high doses, can induce euphoria , enhance self-esteem and increase libido . [3] [4] Source: http://en.wikipedia....Methamphetamine Back to top #16 Jingthing Jingthing Member Schmember Advanced Members 36,105 posts Posted 2012-02-21