CP 226269 is a selective dopamine D4 agonist. This compound was developed by Pfizer for Neuroscience research. CP226269 showed a significant enhancement in the 5-trial inhibitory avoidance model.

SB-277011 is a potent and selective dopamine D(3) receptor antagonist. SB-277011 attenuates reinforcing propertes of drugs of abuse incluting opiates, cocaine, methamphetamine, nicotine and ethanol. SB-277011A produced a significant decrease in food intake in obese rats. Clinical development of SB-277011A has been halted by GlaxoSmithKline Pharmaceuticals, due to poor bioavailability (~2%) and a very short half-life (<20 min) in primates.

3-Methoxytyramine (3-MT) is a human trace amine that occurs as a metabolite of the neurotransmitter dopamine. It has been shown to act as an agonist of human TAAR1, and an inhibitor of mitochondrial respiration. 3-MT has garnered research interest for its potential links and implications to Parkinson's disease and other Neurological disorders.