What is serroquel used to treat?

Seroquel (quetiapine): Seroquel (quetiapine) xr is a once-daily tablet approved in adults for (1) add-on treatment to an antidepressant for patients with major depressive disorder (mdd) who did not have an adequate response to antidepressant therapy; (2) acute depressive episodes in bipolar disorder; (3) acute manic or mixed episodes in bipolar disorder alone or with lithium or divalproex; (4) long-term treatment of bipolar disorder.