Escitalopram
"I'm a 39 y/o female who experienced increased anxiety and finally anxiety attacks at night due to a series of health issues I was dealing with. After other treatments and trying to get off Klonopin I decided to try an SSRI. I started with 2.5 mg of escitalopram with immediate results of reduced anxiety. The next day I bumped it up to 5mg and then began experiencing terrible back pain from neck to hips and sciatica. I tried to stay on for a week but gave up and I am trying Zoloft now. Lexapro was very effective for my anxiety and panic. I did have 2-3 nights of bad insomnia that first week of Lexapro but it started to improve. I would be on it if not for back pain."