Citalopram
"When first starting this medicine I thought it was a God send .. The first 5 days I was able to sleep a whole 8 hrs & wake up with energy and I wasn't nervous all the time. I was calm in stressful situations that I normally exploded in so I was happy but on the 6th day I experienced the WORSE panic attack I had ever experienced. I had had a couple of panic attacks before but nothing like this & it lasted hours. I prayed and cried. Called 911. Called my parents I thought my life was over! I read some of the reviews on here and seen how ppl said stick it out it works. So I informed my Doctor and decided to stick it out.  I am now nervous all the time having stomach cramps and can't sleep I'm giving it up! I hate these feelings "