Sertraline
"This medicine has been a life saver. I was to the point where I thought I'd be in a constant state of panic (heart palpitations, increased blood pressure, hyperventilating). My symptoms initially got more intense once I started Zoloft, but after about 3-4 weeks I started to normalize. 

I started at 25mg daily, which helped side effects, and gradually worked my way up to 50 mg. I found taking 25mg in the morning and 25 mg at night helped keep the side effects to a minimum. 

After 2.5 months on Zoloft, I no longer need Xanax and my blood pressure has decreased dramatically. Whatever you do, don't hold up in your house while starting this medication. Get out and about, put yourself in uncomfortable situations."