A few years ago, I started having incapacitating panic attacks. They were so pronounced that I'd end up in the hospital ER several times a month.
Eventually, I was prescribed an SSRI, and the anxiety attacks went away completely. Maybe it's placebo, but when I tried to stop taking them, the anxiety attacks came back. (reverse placebo?)
I'm not a big fan of big-pharma, but for me, SSRIs were a literal lifesaver. It's easy to criticize, but unless one has an alternative solution, it's best to let things be until better treatments come along.