Well, since everything else evolves, perhaps schizophrenia is doing the same, just like a mutating virus… Impossible you say? The jury is still deliberating that one.
The Seattle Times: Health: Old antipsychotic drugs comparable to new drugs, study finds
Old antipsychotic drugs comparable to new drugs, study finds
By Rosie Mestel
Los Angeles Times
A landmark study comparing schizophrenia drugs has found that an older medication, perphenazine, is as effective at managing the devastating brain disorder as most of the newer, more-expensive drugs.