the therapeutic effects of dopamine ( da ) agonists and da antagonists used in the treatment of schizophrenia ( antipsychotics , da antagonists ) , huntington 's chorea ( da antagonists ) and parkinson 's disease ( antiparkinsonian agents , da agonists ) have been thought to result largely from actions on da receptors located in the striatum ( caudate nucleus and putamen ) .
C0010097
striatum
C0007461
caudate nucleus