TweetRohypnol What is it? Rohypnol is a sleeping pill and a very potent tranquilizer similar to Valium, but much stronger. The drug produces an effect similar to a sedative. Users feel muscle relaxation and the slowing of all major responses. Rohypnol is often called Roofies, Roche, R-2 or Rope. It is marketed by Roche Pharmaceuticals. [...]