Something that's even scarier is when psychiatrists prescribe Abilify. A doctor gave a friend of mine that and now he gets tremors and spasms, has a hard time controlling how fast he talks (as in he talks a bit too quickly), etc. permanently, even after being off of it for about a year.
Mirtazapine is horrible. I have a brother who has autism that is prescribed that. Ever since being on it the effects of his autism have been gradually getting worse and worse. I think it's causing some degree of psychosis even; soon after he started taking it, he became very OCD and much more irritable, and after he was on it for a while, he then started mumbling things to himself and laughing randomly, and now he talks at full conversation volume to himself and laughs. This happens constantly.
In the past I've been on Effexor XR, Lexapro, and Cymbalta. Effexor gave me some weird somatic side effects, for example it felt uncomfortably difficult to breathe, not to mention I would still get very depressed. I was switched to Lexapro afterwards, had the same thing but not to as large of a degree, but my thinking seemed hazier than with the Effexor. Cymbalta was worse yet. Clouded the fuck out of my mind, and gave me anxiety attacks every damn night I was on it. And the doctor tried prescribing me that shit for anxiety. I stopped taking it quickly, but the withdrawl was very, very harsh.
Having said that, I believe there are some extreme cases where antidepressant medications are applicable. Some extreme cases. Not half of all the people who are living. Unfortunately, many/most psychiatrists like to be way, way too overzealous in their prescribing of antidepressants.