William S. Burroughs said this quote

Junk sickness is the reverse side of junk kick. The kick of junk is that you have to have it. Junkies run on junktime and junkmetabolism. They are subject to junk climate. They are warmed and chilled by junk. The kick of junk is living under junk conditions. You cannot escape from junk sickness anymore than you can escape from junk kick after a shot.