I am going into the hospital next week to have a surgey done. I will need to be put out for this procedure. I am on about 80 mg of methadone a day. Being on this, wilI have any complications for the surgery? I know that when I am taking methadone, it does not let me feel any other drugs, well at least not all of it. Will this complicate the procedure? Will I be ok when I take the anesthesia?