> I’ve only ever see Prozac as a part of a turn for the worse.

You might be interested in the book "Empire of Pain: The Secret History of the Sackler Dynasty"[1] by Patrick Radden Keefe. Although it focuses on Oxycodone and other painkillers it touch on Prozac and other SSRI's. Quite the eye opener...

[1]: https://en.wikipedia.org/wiki/Empire_of_Pain