The misuse of some modern antidepressants has egged on mental disorders rather than alleviating them. This is because depressions are complex things. “Anger turned inward” is one common description. And that opens up myriad questions about just why the anger and just why its target.
"Egged on"? If you mean exacerbated beyond endurable limits, triggering violence and destruction, then I'd agree. As for why the initial anger, who cares about the match, when the problem is pouring gasoline on it? What human being is perfectly calm? And yet antidepressants can trigger psychosis in anyone - and they're handed out like candy by the tens of millions, literally to children. Antidepressants create far more problems than they solve, including even creating the "initial anger" from suppressing perfectly normal adolescent mood swings.
Look up Serotonin Syndrome. In some cases the antidepressant itself can trigger psychotic behavior a person would otherwise never engage in. It causes an imbalance in the Serotonin levels which migrates from the stomach in this case to the brain triggering the behavior. Or something as simple as OTC cold or allergy meds taken with antidepressants can cause it as well.
My wife is severely disabled. A quad actually. She was put on two antidepressants Trazodone and Zoloft for PTSD and depression. When Serotonin Syndrome hit her I found out later my 4'10" white wife thought she was Della Reese aka Tess on Touched By an Angel. Her behaviors was things she would never do or say. Luckily she came out of it with partial amnesia before they stopped the pills after I diagnosed it for them. I looked the meds up the doctors didn't.