It took the Geodon about two to two and a half weeks to really tell a difference...however i was inpatient and was getting shots of Geodon when needed so I cant really tell you how fast cause i was getting it two ways. Oh and no mine hasnt gone away I still have them. But instead of in my face, loud, agressive voices (the visual are gone) they are more like back ground noise, like driving with your radio on low, you know its on but unless you pay close attention its just noise, ya cant tell what song...sorry thats the only way i can discribe it...