Not, not Thorazine, but Dexedrine.
Gould self-medicated like crazy and it contributed to his premature death.
http://www.youtube.com/watch?v=U6v-AtqCiQw
Gould's recordings of the piano sonatas changed the way I've listened to Beethoven ever since.
http://www.youtube.com/watch?v=jpDLUxCSiJM
You say that he changed the way you've listened to the sonatas. Do you like his interpretations (in general)? Or do they enlighten you and cause you to look more skeptically at other interpretations? What do you think of the Appassionata?
Oops, I was being (unclearly) tongue-in-cheek about Dexedrine. I publicly swear, affirm, assert that I have never ingested Dexedrine. Want to make that clear.