Pharmacodynamics * Dopamine receptor agonist, selective for subtypes D2 and D3. * Dopamine receptor antagonist, selective for subtypes D4. * Adrenergic receptor antagonist, subtypes α2A and α2C: could be the reason why<unk>  seems to cause less drowsiness than other dopamine agonists. * Lack of affinity to serotonin receptor 5-HT2B: theoretically no risk of heart valve impairment.
Piribedil
Isosorbide dinitrate
Ranolazine
Isosorbide mononitrate
Sotalol
Verapamil
Bisoprolol
Metoprolol