A six-year-old patient with autistic spectrum disorder has not responded to six months of psychosocial interventions and continues to demonstrate aggressive tendencies toward a younger sibling. The psychiatric-mental health nurse practitioner prescribes:
a) carbamazepine (Tegretol) 200 mg once a day.
b) haloperidol (Haldol) 2 mg once a day.
c) risperidone (Risperdal) 0.25 mg once a day.
d) venlafaxine ER (Effexor XR) 37.5 mg once a day.)