My roommate was on serequel 200mg at night - has been for yrs, he stopped taking it as he was in the process of taking latuda . he took latuda20mg for a week-then 40mg for a week -he started having side effects w/latuda and got upset and feels Seroquel was causing side effects and now he has stopped both. hes not doing well -hes very anxious and also had neck surgery in march. he is on oxycodone 15mgs. I'm afraid hes gotten off too much too quick and the oxy is interfering?