drugs . Methamphetamine increases alertness, concentration, energy, and in high doses, can induce  euphoria , enhance self-esteem and increase   libido. Methamphetamine has high potential for  abuse  and  addiction , activating the  psychological reward system  by triggering a cascading release of  dopamine  in the brain.  As a result of methamphetamine-induced  neurotoxicity  to  dopaminergic