A 26-year-old male is admitted to the inpatient psychiatric unit with acute psychotic symptoms including persecutory delusions, disorganized speech, auditory hallucinations, and agitation following heavy methamphetamine use over the past 5 days. His urine drug screen is positive for amphetamines. Vital signs show heart rate 118, blood pressure 162/98, and temperature 100.2 F. He has no prior psychiatric history and no family history of psychotic disorders. After initial medical stabilization, the treatment team requests a pharmacologic plan for managing his psychotic symptoms. Which approach is most appropriate?