There is a need for prolonged acting injection oranzapine antipsychotics, which are capable of improving compliance in patients with schizophrenia or bipolar disorder by sustained delivery and without known adverse effects in products currently approved.The present disclosure is directed to a method of treating schizophrenia or bipolar disorder by subcutaneous administration of oranzapine or a pharmaceutically acceptable salt releasing agent form thereof. The method of administering oranzapine or pharmacally acceptable salt is described.Diagram
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