I took some of my boyfriends seroquel (150 mg) so I could get some sleep. That was not right of me to do but I haven't sleep in about a 4 days (maybe about 12 hrs total if that!) anyway... I was wondering how long it will be in my system? I have to have a drug test due to work... any help?

Seroquel is a med used for psychiatric disorders. It is not a sleeping pill. You are right, it was not right for you to do and could have caused serious damage. Did you actually take l50 mg? That may not be out of your system for some time, and if I were you I would get myself to a doctor.