dopamine antagonist dopamine antagonist a dopamine antagonist, also known as an anti-dopaminergic and a dopamine receptor antagonist (dra), is a type of drug which blocks dopamine receptors by receptor antagonism. most antipsychotics are dopamine antagonists, and as such they have found use in treating schizophrenia, bipolar disorder, and stimulant psychosis. several other dopamine antagonists are antiemetics used in the treatment of nausea and vomiting. dopamine receptor antagonistdopaminergic blockersdrug classskeletal structural formula of haloperidol, a typical antipsychoticclass identifiersuseschizophrenia, bipolar disorder, nausea and vomiting, etc.atc coden05abiological targetdopamine receptors