indelibleface
Bluelight Crew
Also, not all rushes are pleasurable. There are chemicals that cause what some IDU's call a 'dirty rush', an intense, rapid physiological change following an injection that isn't pleasant.
Phew...this makes me cringe. When I think of dirty rushes, IV adenosine immediately comes to mind.
What a uniquely dysphoric, obnoxious, unsettling experience.

