|Amphetamine in Various Forms|
The term "amphetamines" is often used broadly to represent the artificial classes of central nervous system (CNS) stimulants - including amphetamine, methamphetamine, the designer drugs MDMA (ecstasy) and MDA, and other designer drugs. These substances are similar in chemistry and also have generally similar effects on users. Prescription and illicit forms of amphetamine are discussed below. Methamphetamines and the designer drugs are discussed on separate pages.