Answer
It is licensed for depressive episodes in bipolar disorder. Selected prolonged-release products are also licensed alongside an antidepressant for major depressive disorder when antidepressant treatment alone has been inadequate.
Sources for this answer
- Biquelle XL 200mg prolonged-release tablets — Current selected SmPCemc · Summary of Product Characteristics
- Quetiapine 300 mg Film-coated Tablets — Current selected SmPCemc · Summary of Product Characteristics