Sertraline
"I started having panic attacks regularly. I couldn't be on my own, I was afraid of choking every time I ate. It was awful. I lost about 25 pounds in a very short amount of time and couldn't get any of my school work done without suffering from anxiety. I was diagnosed with panic disorder and began taking a variety of medications--eventually I was prescribed Zoloft. It took about a month to kick in but ever since then I have not had a full blown panic attack (although I occasionally suffer from bouts of anxiety). For the most part I would say I seem to suffer from very few side effects--I would say I am more lethargic than normal,  sometimes I have trouble falling asleep at night, and I have a decreased sex drive. But no more panic attacks!"