Rotigotine (N-0923) is a non-ergot dopamine receptor agonist used in the therapy of Parkinson disease and restless leg syndrome. Administered as a once-daily transdermal patch, Rotigotine has not been associated with serum enzyme elevations during treatment or with episodes of clinically apparent liver injury.

Desipramine hydrochloride (Norimipramine) ,a secondary amine tricyclic antidepressant (TCA), is the hydrochloride salt form of desipramine. In the central nervous system (CNS), Desipramine hydrochloride blocks the re-uptake of neurotransmitters, including norepinephrine and serotonin. This leads to an increase in the amount of these neurotransmitters in the synaptic cleft and prolongs their activities postsynaptically.

Sulpiride (Aiglonyl) is a dopamine D2-receptor antagonist, used therapeutically as an antidepressant, antipsychotic, and as a digestive aid.

Bromocriptine mesylate (CB-154) is a potent dopamine receptor agonist that binds the D2 receptor with highest affinity (Ki = 2.5 nM)

Fluoroclebopride is a dopamine (DA) D2 receptor ligand.