Description
Indication
Gastritis, Lactation, Migraine, Nausea and vomiting, Gastroparesis, Non ulcer dyspepsia
Administration
Should be taken on an empty stomach. Take 15-30 min before meals.
Adult Dose
Oral Adults: Nausea and vomiting 10-20 mg 4-8 hrly. Max: 80 mg/day. Non ulcer dyspepsia 10 mg 3-4 times daily. Max: 20 mg 3-4 times daily. Last dose to be taken at bedtime. Migraine 20 mg 4 hrly. Max: 4 doses/24 hr. Rectal: Nausea and vomiting 60 mg twice daily. Elderly: No dosage adjustment needed. Hepatic impairment: No dosage adjustment needed.
Child Dose
Oral Children : 0.2 – 0.4 mg/kg every 4 – 8 hours daily. Rectal Child: <12 yr >15 kg: 30 mg bid; >12 yr >35 kg: 60 mg bid.
Renal Dose
Renal impairment: Mild to moderate: No dosage adjustment needed. Severe: Reduce dosing to 1-2 times daily w/ prolonged treatment.
Contraindication
Hypersensitivity. GI haemorrhage, obstruction and perforation, patients with prolactin releasing pituitary hormone, chronic admin or routine prophylaxis of postoperative nausea and vomiting.
Mode of Action
Domperidone is a peripheral dopamine-receptor blocker. It increases oesophageal peristalsis, enhances gastroduodenal coordination and lowers oesophageal sphincter pressure, gastric motility and peristalsis, thus facilitating gastric emptying and decreasing small bowel transit time.
Precaution
Phaeochromocytoma; children<2 yr, elderly; renal or hepatic impairment. Risk of cardiac arrhythmias and hypokalaemia if administered IV. Pregnancy and lactation.
Side Effect
Drowsiness, extrapyramidal reactions, galactorrhoea, gynaecomastia; constipation or diarrhoea, lassitude, decreased libido, skin rash, itch. Potentially Fatal: Convulsions, arrhythmias and cardiac arrest, dysrrhythmias in patients with CV disease or hypokalaemia, patients on cancer chemotherapy. Seizures; hypertensive crisis in patients with phaeochromocytoma.
Interaction
May antagonise the hypoprolactinaemic effect of bromocriptine. May antagonise the prokinetic effect w/ opioid analgesics and antimuscarinics. Potentially Fatal: Potent CYP3A4 inhibitors (e.g. ketoconazole, erythromycin or ritonavir) may increase serum domperidone levels and subsequently increasing the risk of QT prolongation.
Alcohol
It is not known whether it is safe to consume alcohol with Avomit. Please consult your doctor.
Pregnancy
Avomit may be unsafe to use during pregnancy. Although there are limited studies in humans, animal studies have shown harmful effects on the developing baby. Your doctor will weigh the benefits and any potential risks before prescribing it to you. Please consult your doctor.
Breastfeeding
Avomit is safe to use during breastfeeding. Human studies suggest that the drug does not pass into the breastmilk in a significant amount and is not harmful to the baby.
Driving
Avomit may decrease alertness, affect your vision or make you feel sleepy and dizzy. Do not drive if these symptoms occur.
Kidney
Avomit should be used with caution in patients with kidney disease. Dose adjustment of Avomit may be needed. Please consult your doctor.
Liver
Avomit should be used with caution in patients with liver disease. Dose adjustment of Avomit may be needed. Please consult your doctor. Use of Avomit is not recommended in patients with moderate and severe liver disease.
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