Localisation and functions
Postsynaptic D2 receptors are present in dopaminergic projection areas such as the striatum, limbic areas (nucleus accumbens, olfactory tubercle), hypothalamus and pituitary. D2 receptors are also located presynaptically in the substantia nigra pars compacta, ventral tegmental area and striatum, where they function to inhibit the release of dopamine.