Cough suppression is one of the first things that heroin was marketed for: http://i.kinja-img.com/gawker-media/image/upload/s--k12ZMisi--/c_fit,fl_progressive,q

Cough suppression is one of the first things that heroin was marketed for: http://i.kinja-img.com/gawker-media/image/upload/s--k12ZMisi--/c_fit,fl_progressive,q_80,w_636/18p5js1ac32mcgif.gif http://i.kinja-img.com/gawker-media/image/upload/s--k12ZMisi...