Speed (methamphetamine) is a potent and addictive central nervous system stimulant, closely related to amphetamine. Includes speed side effects, … Speed is a drug that can become addictive and lead to health, social and financial problems. Find out about its effects and associated risks. Amphetamine [note 2] is a central nervous system (CNS) stimulant that is used in the treatment of attention deficit hyperactivity disorder (ADHD) and … What is speed? Speed is a drug, also called \’amphetamine\’. It usually appears as a powder. Speed also has many nicknames, like you can … Amphetamines are drugs that are stimulants to the central nervous system. These drugs may be used medically to treat depression, obesity, … About amphetamine. A synthetic substance. Normally seen as a white powder, it acts as a stimulant of the central nervous system (CNS). Amphetamines (including speed) are a group of stimulant drugs used to stay awake, energised and alert. For everything you want to know, talk to FRANK. Speed ist ein stimulierendes Amphetamin, das vor allem aktivierend und konzentrationssteigernd wirken kann. Es wird oft in Party- oder Leistungskontexten …