I once took a half of a pill on the advice of a doctor, whom I consulted for being unable to work, and not being depressed, but feeling "emptied out" when I got to work, after somehing "seemed to break within me". But I made it clear I wasn't depressed, just without any drive or desire to accomplish things. Turns out it was a burn-out, not a depression.

Anyway, half a pill goes down and I start feeling like I want to peform acts of murder and violence. To make people BLEED and SUFFER. This is so contrary to my normal state that I immediately realized the pill did that to me. Needless to say I never used them again.

But having experienced this, I can say I am unsurprised when I read that all the mass-murderers of the last 20+ years had been using SSRIs.

They are most likely not useful at all, except as a means to profit.