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Guidance For Switching From Off-Label Antipsychotics To Pimavanserin For Parkinson’S Disease Psychosis: An Expert Consensus, Kevin J. Black, Henry Nasrallah, Stuart Isaacson, Mark Stacy, Rajesh Pahwa, Charles H. Adler, Gustavo Alva, Jeffrey W. Cooney, Daniel Kremens, Matthew A. Menza, Jonathan M. Meyer, Ashwin A. Patkar, Tanya Simuni, Debbi A. Morrissette, Stephen Stahl
Guidance For Switching From Off-Label Antipsychotics To Pimavanserin For Parkinson’S Disease Psychosis: An Expert Consensus, Kevin J. Black, Henry Nasrallah, Stuart Isaacson, Mark Stacy, Rajesh Pahwa, Charles H. Adler, Gustavo Alva, Jeffrey W. Cooney, Daniel Kremens, Matthew A. Menza, Jonathan M. Meyer, Ashwin A. Patkar, Tanya Simuni, Debbi A. Morrissette, Stephen Stahl
Kevin J. Black, MD
Patients with Parkinson’s disease psychosis (PDP) are often treated with an atypical antipsychotic, especially quetiapine or clozapine, but side effects, lack of sufficient efficacy, or both may motivate a switch to pimavanserin, the first medication approved for management of PDP. How best to implement a switch to pimavanserin has not been clear, as there are no controlled trials or case series in the literature to provide guidance. An abrupt switch may interrupt partially effective treatment or potentially trigger rebound effects from antipsychotic withdrawal, whereas cross-taper involves potential drug interactions. A panel of experts drew from published data, their experience treating …