The funny thing about Psych meds ..Everyones body processes them differently ..
One thing I will say and I have seen it over and over .. Patient X is started on medication A and then still having trouble so med B is added .. still having trouble lets add med C and increase A and B again .(on and on). You get the picture ...Sometimes meds just get upped and upped and added onto that. I see a lot of cases where people are just on so many meds and over medicated.
I think everyone thats on numerous meds need to sit down with there Pdoc occasionally and just review all the meds and doses .. Things can just be over looked and its not done on purpose of course ..
Just my opinion of course