[Quiet Man Cometh]

I thought he had an opium addiciton? But as one of my old profs would say, opium was essentially the asprin of the time, among other drugs and such. I do remember reading a passage where Watson write about Holmes' habit of going on long walks into nasty parts of the city and lying for days at a time on his couch, and Watson says that he would have suspected Holmes of using drugs except that he didn't believe it possible given how he runs the rest of his life.