Doing methadone for over 10 years. On 80-100mg per day for past 3-4 years. Want to try this sub-ox treatment but fear having methadone in system when they give me first dose this Thursday. For past 3 days only taken 30mg/day.Tomorrow will take 30mg... Thursday morning 0mg... appointment at 12noon... not sure what mg they will give me but will the methadone in my system cause me to go into withdrawal? DO I HAVE TO KICK METHADONE TO AVOID THE PAIN?