This makes me think about how lobotomy was introduced, with very similar reasons given. Or electro-shock treatment. This seems like a chemical version of the same thing.

And like those predecessors if it catches on it'll be used for a far wider range of problems, and eventually rejected and abandoned by the medics. Leaving a whole range of people with memories permanently screwed up. People with emotions without the memories that explain the emotions, people with the memories but without the emotions that belong with them... Even chemically induced psychopathy.

We just aren't within sight of knowing enough about how the human mind works to be able to responsibly risk this kind of thing.