"it was mainly prescribed as a sleep aid, in addition to its antidepressant qualities. i was on regular seroquel and now on xl as i have trouble staying asleep. it&#039;s slightly better. i&#039;m getting 6 hours of sleep a night. i am not usually groggy or snowed by this, maybe once per 30 doses. i&#039;m ok with it. only downside is cost (xl is brand)"