Methamphetamines are drugs that act as a stimulant on the central nervous system (CNS). This category of drugs are sometimes used as scheduled medication for the treatment of conditions like attention-deficit hyperactivity disorder (ADHD) or narcolepsy. However the narcotic methamphetamine or ‘meth’ is usually concentrated and produced in illegal make-shift laboratories known as meth labs.
By using a narcotic methamphetamine, a euphoria (high) that is often described as ‘intensely pleasurable’ to the user is quickly followed by a ‘downer’ or ‘comedown’ (low) that is experienced as a severe depression and fatigue. The effects of methamphetamines make it a likely drug for abuse and addiction as the user will require repeated doses (‘hits’), not only to maintain a high, but to avoid the after effects of the drug.