“…For instance, dopamine reuptake inhibitors might be more effective than direct dopamine agonists if the clinical benefits are more related to or include modifications of receptor density or sensitivity rather than direct stimulation of postsynaptic dopamine receptors. For example, the serotonin 5HT1A receptor agonist, buspirone, appears to be ineffective for social phobia [van Vliet et al, 1997], while marked benefits have been associated with the use of the serotonin reuptake inhibitors [Stein et al, 1999]. Both dopaminergic and serotonergic abnormalities have been implicated in the pathophysiology of social phobia; medications which affect both systems may be particularly beneficial.…”