It was added to my antidepressant last month; I started with 2.5mg then went up to 5mg but the exhaustion I experienced was worse than the depression (and worse than when I had glandular fever...). I am really super-sensitive to many meds, and even though it was such a low dose I couldn't cope. I only lasted 3 weeks on it. I guess it depends on how severe and how long the side effects may last for vs the benefits of it.