major depressive disorde
"A GP prescribed me this med to try shift what he called 'major depressive disorder', despite the fact I was diagnosed with Bipolar. I don't know why he prescribed this med, as a lot of places/people have said it's rarely used for depression anymore. 

This med made me tired immediately after I took it, but it did nothing for my depression, and unfortunately when my GP raised it to 200mg it caused me to go manic.

He lowered the dose back to 100mg; even though it did nothing to help my mood I was left taking this med for almost a year. When I was finally told I could stop taking it I had to wean off it very slowly, as without it I was no longer able to sleep. I ended up sleeping badly for several several months , which caused a manic episode"