Speed (methamphetamine) is a potent and addictive central nervous system stimulant, closely related to amphetamine. Includes speed side effects, interactions and methods of use. Speed (methamphetamine) is a potent and addictive central nervous system stimulant, closely related to amphetamine. read more
Stimulant drugs speed up the central nervous system and that’s the reason that these drugs are called ‘speed’. They increase the heart rate, blood pressure, enlarge your pupils and with larger doses, you become angry, violent and paranoid. read more
Speed is one of the street names for a group of drugs known as 'amphetamines'. It is a stimulant, and generally gives the user increased energy, lack of appetite, and insomina. read more