They have a drug called "Halodol" and it is taken with "Cojentin", they will stop the voices in your head. They will also turn you into a friggin vegetable but you won't hear voices anymore.
If you take Halodol without Cojentin, you will lock up in siezures like an idiot. I saw this Hollywood crusty punk rocker locking up on the Blvd one night back in 96, what a sight that was.