Domperidone

Domperidone is a dopamine blocker and an antidopaminergic reagent.Target: Dopamine ReceptorDomperidone is a useful alternative to metoclopramide for treatment of gastroparesis due to better tolerability. Effectiveness and side-effects from domperidone may be influenced by patient-related factors including polymorphisms in genes encoding drug-metabolizing enzymes, drug transporters, and domperidone targets [1]. Domperidone is a dopamine D(2) receptor antagonist, which has been used as ant
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Domperidone is 1-[3-(Piperidin-1-yl)propyl]-1,3-dihydro-2H-benzimidazol-2-one in which the 4-position of the piperidine ring is substituted by a 5-chloro-1,3-dihydro-2H-benzimidazol-2-on-1-yl group. A dopamine antagonist, it is used as an antiemetic for the short-term treatment of nausea and vomiting, and to control gastrointestinal effects of dopaminergic drugs given in the management of parkinsonism. The free base is used in oral suspensions, while the maleate salt is used in tablet preparations. It has a role as an antiemetic and a dopaminergic antagonist. It is a member of benzimidazoles and a heteroarylpiperidine.|A specific blocker of dopamine receptors. It speeds gastrointestinal peristalsis, causes prolactin release, and is used as antiemetic and tool in the study of dopaminergic mechanisms.|Domperidone is a peripheral-specific antagonist of the dopamine receptor D2 (D2R), with antiemetic, gastrokinetic and galactagogue activities. Following administration, domperidone binds to D2R expressed by peripheral neurons; this inhibits dopamine binding and D2R-mediated signaling. Inhibition of peripheral D2R signaling prevents or relieves various gastrointestinal (GI) symptoms, such as nausea and vomiting, and may help relief reflux and symptoms of a variety of other upper GI disorders.