For some years I have been taking Latuda at 60mg and Seroquel at 50mg (for sleep). My now retired psychiatrist had no problems with that but he said my insurance would stop covering one of them because they would object to my taking two atypical antipsychotics.
So far they never have and it's been, as I said, years. My current psychiatrist doesn't believe my insurance will ever care--and so far they haven't. I haven't had any troubles being on both, though that may be because my Seroquel dose is so low.