tokens: A single MPEP ( 5 mg / kg ip ) injection reduced the basal extracellular dopamine level in the striatum , as well as dopamine release stimulated either by methamphetamine ( 10 mg / kg sc ) or by intrastriatally administered veratridine ( 100 microM ). Moreover , it transiently diminished the methamphetamine ( 10 mg / kg sc )- induced hyperthermia and reduced basal body temperature .