Abstract
Alzheimer's disease poses intricate challenges, affecting cognition and behavior, notably marked by agitation. The FDA's approval of brexpiprazole, an atypical antipsychotic, stands as a milestone, representing the first treatment for Alzheimer's-related agitation. brexpiprazole's modulation of serotonin-dopamine activity has proven effective in clinical trials, reducing agitation as measured by CMAI scores. Gradual dosage escalation is recommended, with potential side effects including nasopharyngitis, urinary tract infections, dizziness, somnolence, headache, and insomnia. Also useful for schizophrenia and treatment-resistant depression, providing ongoing treatment and potential well-being enhancement by managing agitation and other symptoms.