Nafadotride is a

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 ...

with reasonable selectivity for the D₃ subtype (9.6 times selectivity for D₃ over D₂).Pilla M, Perachon S, Sautel F, Garrido F, Mann A, Wermuth CG, Schwartz JC, Everitt BJ, Sokoloff P. Selective inhibition of cocaine-seeking behaviour by a partial dopamine D3 agonist. ''Nature''. 1999;400:371–375.

References

Dopamine antagonists Pyrrolidines Carboxamides Nitriles Naphthol ethers {{nervous-system-drug-stub