In the beginning yes for sleep but that was 2005. Since 2008 at a much higher dosage of 1200mg and due to a failed attempt to tapper which lasted 8 months only got to 400mg but had to go back up to 800mg as the side effects and withdrawal symptoms became intolerable. Seroquel has been my single solo psych med since 2019 but due to some serious side effects impacting my health I need to discontinue seroquel all together.