Impedrezene is a narcotic that impedes one's ability by slowing down the higher brain cell functions. This drug can last for hours in Humans. It attacks neuro-cognitive motor function by suppressing higher cognitive abilities. Extreme headaches are associated with use of this drug after the effects have worn off. (VOY: "Alliances", "Investigations")
{{bginfo|It is unclear whether the spelling of the term is impedrezene or impedrezine.}]