that morphine, used frequently as a painkiller, is the pure form of heroin. seriously. also how would cocaine STOP your nose from bleeding? :S
also (more drug related stuff) why tobacco, known to cause lung, throat and mouth cancers is readily available in shops, but marajuana, a completely harmless substance, is an illegal drug. also alcohol... what the hell? that kills thousands of people a year (never stopped me though

). It turns out one of the main reasons marajuana was banned in the UK was because it wasn't easy to control its production, because it grows naturally in our climate. huh. (also the paranoia risk, but mainly the first reason)
Drug lecture over