The most tolerated antipsychotic in the industry is clozapine.
Clozapine acts like an antipsychotic but has a slight difference instead of slightly hindering the acetylcholine muscuranic receptors in agonisise them.
The problem with clozapine is the high risk of blood poisoning so you have to have a monthly test.
The psychiatrist will tell you he wants a drug like clozapine but without the blood problem. He's lieing since clozapine there has been no research into finding an antipsychotic with the same effect in fact he wouldent even need to do this if he really cared about reserving peoples ability to mentally cope all he'd have to do is give you muscurine along with your antipsychotic.
Clozapine is there not because of research limitations but because in the mind of psychiatry if you want to preserve your intelligence it must come at a cost. In layman's terms the psychiatrist trives on dependency culture a drug more like clozapine with out the blood problem would lead to less dependency on psychiatry.
Put another way the psychiatrist wants you to always need him so there will always be problems caused and issues never solved from the drugs he gives you and he will always be looking to dumb you down over helping the cognitive or even negative problems associated with schizophrenia.
Put another way psychiatry is more about abuse and control than it is about actually helping people.