A<unk>  <unk>  is a compound that activates<unk>  receptors. There are two families of<unk>  receptors, D2-like and D1-like, and they are all G protein-coupled receptors. D1- and D5-receptors belong to the D1-like family and the D2-like family includes D2, D3 and D4 receptors.<unk> s are used in Parkinson’s disease and, to a lesser extent, to treat depression, hyperprolactinemia and restless legs syndrome.
Dopamine agonist
Dopamine antagonist
Alpha-adrenergic agonist
Norepinephrine–dopamine disinhibitor
Muscarinic antagonist
Beta-adrenergic agonist
Serotonin receptor agonist
Orexin antagonist