Cas No. :57808-66-9
CAS number 57808-66-9
ATC code A03FA03
Mol. weight 425.911 g/mol
SMILES eMolecules & PubChem
Protein binding 91–93%
Metabolism Hepatic and intestinal (first-pass)
Half life 7 hours
Excretion Breast milk, renal
Pregnancy cat. Not classified
Routes Oral, intravenous, rectal
Domperidoneis an antidopaminergic drug, and used orally, rectally or
intravenously, generally to suppress nausea and vomiting. It has also
been used to stimulate lactation.
Domperidone is used, together with metoclopramide, cyclizine, and 5HT3
receptor antagonists (such as granisetron) in the treatment of nausea
Domperidone has also been found effective in the treatment of
gastroparesis, a stomach motility condition, and for paediatric
Gastroesophageal reflux (infant vomiting).
It has been used in patients with Parkinson's disease.
Unlike metoclopramide:, domperidone does not cross the blood-brain
The hormone prolactin stimulates lactation in humans, and its release is
inhibited by the dopamine secreted by the hypothalamus. Domperidone, by
acting as an anti-dopaminergic, results in increased prolactin
secretion, and thus promotes lactation.
Since, according to the American FDA, domperidone is not approved for
enhanced lactation in any country, it is sometimes self-prescribed from
original research or prescribed "off-label" for this use in countries
around the world.
There is some evidence that domperidone has antiemetic activity.
Domperidone is a first choice anti-emetic in most countries,[citation
needed] together with metoclopramide. It is however not approved for
prescription in the US. Although it has never been officially approved
for use in the United States, domperidone is sometimes purchased from
pharmacies in other countries for this purpose.
Headache, dizziness, dry mouth, nervousness, flushing, or irritability
may occur the first several days as your body adjusts to the medication.
Trouble sleeping, stomach cramps, hot flashes and leg cramps have also
been reported. If any of these effects continue or become bothersome,
inform your doctor. Notify your doctor immediately if you develop: chest
pain, slow/fast/irregular heartbeat, swelling of the feet or ankles,
difficulty urinating, swelling of the breasts or discharge from the
nipple in men or women, menstrual changes, sexual difficulties. If you
notice other effects not listed above, contact your doctor or
Tell your doctor your medical history, especially of: history of breast
cancer, allergies. Limit your intake of alcoholic beverages. This
medication should be used only if clearly needed during pregnancy.
Discuss the risks and benefits with your doctor. Domperidone passes into
breast milk. Due to the potential risks to a nursing infant,
breast-feeding while using this drug is not recommended. Consult your
doctor before breast-feeding