A Little Dab Will Do: A Case of Cannabis-Induced Psychosis

Abstract A patient presented to the emergency department with his brother due to recent onset of paranoid behavior that escalated over the past month. The patient endorsed paranoid delusions of people watching him and following him in a black truck. The patient admitted to being unable to sleep for the past two weeks and to having hypervigilant behavior whenever he leaves the house. Due to the patient’s presentation, the differential diagnosis included schizophrenia, substance-induced psychotic disorder, psychotic disorder due to