Biggest thing to consider is that prayer, meditation teaching, being patient, forgiving, acting with dignity and grace, letting go of resentments, all of these will dramatically reduce mental illness,
You see these meds mess up the mind and maybe produce a socially acceptable result to an individual in a socially unacceptable situation, all the reasons stay hidden under all the rocks and all the tools used for thousands of years are forgotten for many reasons,

Before there were meds, there was prayer, it was very hard and tested the individual and people did not make it, but those who did learned strength of character, many positive traits, repeating the name of of god alone can do this, this is the discipline, it is not obeying another insane human, but being able to tap into the universal source.