Generic Motilium ( Domperidone )

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Motilium (Domperidone 10 mg): Comprehensive Patient Information for Canada

Basic Product Information

Mechanism of Action

In simple terms: Motilium is a medication that helps the stomach empty faster and prevents nausea and vomiting. It works by blocking the effects of a natural substance called dopamine in the gut and in the brain's vomiting centre. By doing this, it speeds up the movement of food through the stomach and upper intestine, and it stops the signals that trigger the urge to vomit. Unlike some other anti-nausea medications, it does not easily enter the brain, which means it is less likely to cause drowsiness or movement side effects.

For specialists: Domperidone is a dopamine antagonist with antiemetic properties. It is a peripheral dopamine D2 receptor antagonist that does not readily cross the blood-brain barrier. Its antiemetic effect is due to a combination of peripheral (gastrokinetic) effects and antagonism of dopamine receptors in the chemoreceptor trigger zone, which is located outside the blood-brain barrier in the area postrema. Human studies have shown that oral domperidone increases lower esophageal sphincter pressure, improves antroduodenal motility, and accelerates gastric emptying. It has no effect on gastric secretion. Domperidone stimulates prolactin release from the pituitary gland. It is structurally related to the benzimidazoles and blocks both D1 and D2 receptors.

Pharmacokinetics

• Absorption: In fasting subjects, domperidone is rapidly absorbed after oral administration, with peak plasma concentrations occurring approximately 30 to 60 minutes after dosing. Due to extensive intestinal wall and hepatic first-pass metabolism, the absolute oral bioavailability is low (approximately 15%). Taking domperidone after meals may slightly delay the time to peak concentration but slightly increases the AUC. Reduced gastric acidity decreases the absorption of domperidone.
• Metabolism: Domperidone undergoes rapid and extensive metabolism in the liver through hydroxylation and N-dealkylation. CYP3A4 is the major cytochrome P450 enzyme involved in the N-dealkylation of domperidone. CYP3A4, CYP1A2, and CYP2E1 are involved in the aromatic hydroxylation of domperidone.
• Elimination: Urinary and fecal excretion account for 31% and 66% of the oral dose, respectively. Only a small fraction of the drug is excreted unchanged (10% in feces and about 1% in urine). The plasma half-life after a single oral dose in healthy subjects is 7 to 9 hours, and may be prolonged in patients with severe renal impairment.
• Distribution: Domperidone is approximately 91–93% bound to plasma proteins. Animal studies using radiolabeled drug show high tissue distribution, but brain concentrations are very low. A small amount of drug crosses the placenta in rats.
• Onset of Action: Following oral administration, domperidone begins to take effect within approximately 30 to 60 minutes.
• Duration of Action: The antiemetic and prokinetic effects typically last for several hours following a single dose.

Uses in Daily Life and Best Practice Advice

Domperidone is prescribed in Canada for the treatment of nausea and vomiting and for conditions involving delayed stomach emptying. Your physician will determine the appropriate use and dose based on your specific medical situation.

• Typical Uses: Symptomatic treatment of nausea and vomiting in adults and adolescents 12 years of age and older weighing 35 kg or more. It is also approved in Canada for the symptomatic treatment of upper gastrointestinal motility disorders associated with chronic or subacute gastritis and diabetic gastroparesis. Domperidone is also commonly used for chemotherapy-induced nausea and vomiting, especially when patients cannot tolerate other antiemetics that may cause extrapyramidal side effects.
• Administration: Take the tablet orally before meals. If taken after meals, absorption is somewhat delayed. Swallow the tablet whole with water.
• Monitoring: If symptoms do not improve within a reasonable period, or if they worsen, consult your physician. The maximum recommended treatment duration is generally one week. Use the lowest effective dose for the shortest possible duration.
• Do Not Exceed Recommended Dose: Do not take more than the prescribed dose. The maximum recommended daily dose is 30 mg.

Morning vs. Evening Dosing

Domperidone is typically taken three times daily, with doses spaced throughout the day. For best results, take it before meals. There is no specific clinical recommendation for morning versus evening dosing beyond the meal-related timing. Always follow the schedule recommended by your physician.

• Before Meals: Taking domperidone before meals helps with delayed stomach emptying and prevents nausea associated with eating. If taken after meals, absorption is somewhat delayed.
• Consistency: Take domperidone at the same times each day to ensure consistent effects.
• Missed Dose: If you miss a dose, skip the missed dose and resume your usual dosing schedule. Do not take a double dose to make up for a forgotten dose.
• Maximum Duration: Normally, the maximum treatment duration should not exceed one week.

Administration With or Without Food

Domperidone should be taken before meals. This timing allows the medication to be absorbed and reach the gastrointestinal tract before food enters, maximizing its prokinetic and antiemetic effects. If taken after meals, absorption is somewhat delayed.

• Take the tablet with a full glass of water.
• Take domperidone before each meal as prescribed.
• Swallow the tablet whole. Do not crush or chew unless directed by your pharmacist.
• Antacids or antisecretory drugs should not be taken at the same time as domperidone, as they reduce the oral bioavailability of domperidone.

Interaction Warnings

Indications for Domperidone

"Off-label" means use outside the official approved indication, usually based on current medical guidelines and scientific evidence.

Dosing According to Clinical Indication

Doses should always be adjusted according to the advice of your physician and depending on your health condition. Domperidone is contraindicated in patients with moderate or severe hepatic impairment, prolactin-releasing pituitary tumour (prolactinoma), or conditions where gastrointestinal stimulation could be dangerous (e.g., gastrointestinal obstruction, perforation, or hemorrhage).

Side Effects and Safety Profile

Guidelines for Correct Use

• Take domperidone exactly as prescribed by your physician. Do not change your dose without medical advice.
• Take the tablet with a full glass of water before meals.
• Do not exceed the maximum daily dose of 30 mg.
• Use the lowest effective dose for the shortest possible duration. The maximum treatment duration is generally one week.
• Do not stop taking this medication without consulting your physician.
• If you are pregnant, planning to become pregnant, or breastfeeding, consult your physician before use. Domperidone is not recommended during breastfeeding.
• If you miss a dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose.
• Keep all medical appointments for monitoring of your condition.
• Store at 15–30°C in a dry place. Keep out of reach of children.

Alternative Treatment Options

• Metoclopramide (Maxeran): A dopamine antagonist with prokinetic and antiemetic properties. Available in Canada in oral and injectable forms. It crosses the blood-brain barrier and may cause extrapyramidal side effects.
• Ondansetron (Zofran): A 5-HT3 receptor antagonist commonly used for nausea and vomiting, particularly chemotherapy-induced and postoperative. Available in oral, orally disintegrating, and injectable forms.
• Prochlorperazine (Stemetil): A phenothiazine antiemetic used for various causes of nausea and vomiting. Available in oral, rectal, and injectable forms.
• Dimenhydrinate (Gravol): An antihistamine antiemetic available over the counter for motion sickness and general nausea.
• Domperidone (Motilium): The subject of this article. Available in Canada as a prescription medication.

Comparison: Domperidone is distinguished from other antiemetics by its peripheral action, meaning it does not easily cross the blood-brain barrier and therefore has a lower risk of central nervous system side effects such as drowsiness and extrapyramidal symptoms compared with metoclopramide. However, it carries a risk of QT prolongation and serious cardiac arrhythmias, particularly at higher doses or when used with interacting medications. Metoclopramide is more commonly associated with extrapyramidal side effects. Ondansetron has a more favourable cardiac safety profile for short-term use but is less effective as a prokinetic. Your physician will determine the best option for your specific condition.

Legal Status, Registration, and Coverage in Canada

• Registration: Domperidone is authorized for sale in Canada by Health Canada as a prescription drug. It has been marketed in Canada since 1985. The brand-name Motilium has been cancelled post-market since 2002. Numerous generic formulations are available in 10 mg tablets from multiple manufacturers. A generic domperidone product from Nora Pharma (a subsidiary of Sunshine Biopharma) received Health Canada approval in 2025 for chemotherapy-induced nausea and vomiting.
• Prescription Status: Prescription only in Canada.
• Coverage: Coverage varies by province, territory, and private insurance plan. In Quebec, domperidone is covered under the RAMQ formulary. Generic formulations are generally more affordable than brand-name products.
• Pharmacovigilance: Adverse reactions should be reported to Health Canada's MedEffect Canada program.

Recent Research and Clinical Guidelines (2022–2026)

• Health Canada has issued safety reviews on domperidone, including an assessment of the potential risk of psychiatric withdrawal events when used for lactation stimulation. Domperidone is not authorized in Canada to promote lactation, but data indicate it has been prescribed off-label for this purpose.
• A 2025 study published in Obstetrics & Gynecology found no association between domperidone initiation and an increased risk of new-onset psychosis or mental health diagnoses in new mothers.
• A 2025 guideline for antiemetic strategies in patients with Parkinson's disease recommends domperidone as the first-line antiemetic for Parkinson's disease, as it does not cross the blood-brain barrier and is available in Canada.
• The American College of Gastroenterology notes that domperidone is not FDA-approved in the United States but is available in Canada, Mexico, and Europe for gastroparesis.
• Health Canada recommends a maximum domperidone dose not exceeding 30 mg/day. The International Breastfeeding Centre recommends a starting dose of 30 mg three times per day (90 mg/day) for lactation stimulation, which exceeds the Health Canada maximum.
• Domperidone remains a first-line prokinetic agent for gastroparesis in Canada, along with metoclopramide.

Availability and Supply in Canada

Prices and availability may vary by province, territory, and pharmacy. A drug shortage for domperidone 10 mg was reported by Sanis Health Inc. in December 2025 due to a disruption in the manufacture of the drug, with an estimated end date unknown. Another shortage was reported for DOMPERIDONE-10 with an avoided status between August and September 2025. Check with your local pharmacy for current pricing and availability.

Frequently Asked Questions (FAQ)

1. What is Motilium used for?
   Motilium (domperidone) is used to treat nausea and vomiting in adults and adolescents 12 years of age and older weighing 35 kg or more. It is also used to treat upper gastrointestinal motility disorders associated with chronic or subacute gastritis and diabetic gastroparesis.
2. How long can I take domperidone?
   The maximum recommended treatment duration is generally one week. Use the lowest effective dose for the shortest possible duration.
3. What is the correct dose of domperidone 10 mg?
   The recommended adult dose is one 10 mg tablet up to three times daily, with a maximum dose of 30 mg per day. Take it before meals.
4. Can I take domperidone with food?
   Domperidone should be taken before meals. If taken after meals, absorption is somewhat delayed. Taking it before meals ensures that the medication is activated when the stomach is most active.
5. What should I do if I miss a dose?
   If you miss a dose, skip the missed dose and resume your usual dosing schedule. Do not take a double dose to make up for a forgotten dose.
6. Can I drink alcohol while taking domperidone?
   No direct interaction has been established, but alcohol may worsen gastrointestinal symptoms. Avoid excessive alcohol consumption while taking domperidone.
7. What are the serious side effects of domperidone?
   Serious side effects include QT prolongation (which can lead to irregular heartbeats), ventricular arrhythmias, Torsade de Pointes, and sudden cardiac death. Seek immediate medical attention if you experience palpitations, fainting, or an irregular heartbeat.
8. Is domperidone safe during pregnancy?
   Domperidone should be used during pregnancy only if clearly necessary. Consult your physician if you are pregnant or planning to become pregnant.
9. Is domperidone safe during breastfeeding?
   Domperidone is not recommended during breastfeeding. It passes into breast milk and may cause adverse reactions in the infant. Health Canada does not authorize domperidone for lactation stimulation.
10. Are there generic versions of domperidone available in Canada?
    Yes. Generic domperidone is widely available in Canada in 10 mg tablets from multiple manufacturers, including Teva Canada, Taro Pharmaceuticals, Sanis Health, Sivem Pharmaceuticals, Apotex, and others.
11. Why was Motilium discontinued in Canada?
    The brand-name Motilium has been cancelled post-market since 2002. However, generic domperidone products remain available as prescription medications.

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