Withdrawal refers to the physical and mental symptoms drug-dependent people experience when they stop taking the drug they depend upon or when they drastically reduce its use.
Source: GreenFacts
Effects of prolonged use include abnormalities in specific regions of the brain, loss of some mental capacity, problems with movement, decreased reaction times.
Source: GreenFacts
Español: Síndrome de abstinencia
Français: Etat de manque
Nederlands: Ontwenning