Quinpirole

Description

Quinpirole LY 171555 is a dopamine D2/D3 receptor agonist with activity in reducing hypothalamic norepinephrine concentrations. The effects of Quinpirole are not produced by the selective D1 agonist SKF 38393 or the dextrorotatory isomer of Quinpirole, which lacks D2 agonist activity. By activating D2 receptors, Quinpirole leads to a decrease in dopamine metabolites, a decrease in hypothalamic norepinephrine concentrations, and a possible increase in MHPG sulfate by enhancing norepinephrine release.