Research found that CBT was as effective as antidepressants in treating depression. They used 327 adolescents with a diagnosis of depression and compared the effectiveness of CBT, antidepressants and a combination of the both.
After 36 weeks, 81% of the antidepressant group, 81% of the CBT and 86% of the combination group had significantly improved.
This demonstrates the effectiveness of CBT in treating depression and also suggests that it works well alongside medication as a combination therapy and this may even be more effective than just one or the other.