Escitalopram
"I was prescribed escitalopram for anxiety and panic attacks. I did not have any difference in anxiety and instead suffered from extreme depression and suicidal thoughts within a few weeks of being on it. My doctor made me promise to try this one for at least 6 weeks and the feeling only got worse and worse. I had to slowly ween myself off (as warned to do), and feel 100x better with that stuff out of my system. Apparently this side effect is rare, but very scary."