I just watched the film and thought it was fantastic. It was really dark and disturbing at times. The film kept me guessing at every turn and I haven’t been this impressed with a modern film in a while.
If you haven’t seen it yet I highly encourage you to check it out. Viewer discretion advised obviously.
Tap for spoiler
I think coke sort of works as a pain killer and gives you an energy boost. I haven’t tried either drug but I can’t imagine combining the two would be pleasant. Also, I thought it would take more ketamine than that to tranquilize someone. People smoke it and don’t pass out. I’m not an expert however.