"Amphetamine, a drug with stimulating effect on the central nervous system that can be by physically and psychologically addictive when overused. This drug has been much abused recreationally. The street term speed refers to stimulant drug such as amphetamine, rushes a pleasure similar to orgasm or electric shock. Reduced appettite, increased alertness and euphoria, restlessness, dizziness, confusion, depression, paranoia, distorted perceptions and beings. MDMA otherwise known as Ecstacy. Primary effects include euphoria, empathy, and appreciation of the repetitive rhythm of dance music. Its initial adoption by the dance club subculture is probably due to the enhancement."