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Domperidone

Domperidone is a medication that has been the subject of several clinical trials investigating its potential benefits in treating various medical conditions. These trials have explored its use in gastroparesis, multiple sclerosis, breast milk production, and other disorders. This article summarizes the key findings from these studies and provides insights into the potential applications of domperidone in clinical practice.

Table of Contents

What is Domperidone?

Domperidone is a medication used to treat various gastrointestinal disorders. It is known by several other names, including Motilium, Motillium, Motinorm Costi, Nomit, Brulium, and Molax[1]. This drug acts as a prokinetic agent, which means it helps improve the movement of food through your digestive system[2].

Uses of Domperidone

Domperidone is primarily used to treat the following conditions:

  • Gastroparesis: A condition where the stomach takes too long to empty its contents[3]
  • Gastroesophageal Reflux Disease (GERD): A digestive disorder that affects the ring of muscle between the esophagus and stomach[1]
  • Nausea and vomiting: Especially in patients with Parkinson’s Disease or Diabetes Mellitus[4]
  • Slow moving bowels: Which can cause constipation[4]
  • Low milk supply in breastfeeding mothers: Domperidone can help increase breast milk production[5]

It’s important to note that domperidone is often prescribed when other standard treatments have failed[6].

How Domperidone Works

Domperidone works by blocking a specific type of receptor in the body called dopamine-2 receptors. This action has two main effects:

  1. It improves the movement of food through the stomach and small intestines, which helps with digestion and reduces symptoms like nausea and vomiting.
  2. It increases the production of prolactin, a hormone that stimulates milk production in breastfeeding mothers[2].

Unlike some other medications used for similar purposes, domperidone doesn’t typically cause neurological side effects because it doesn’t cross the blood-brain barrier easily[2].

Dosage and Administration

Domperidone is usually taken orally in tablet form. The typical dosage can vary depending on the condition being treated and the individual patient’s response:

  • For gastrointestinal disorders: The initial dose is often 10mg taken 2-4 times a day[6].
  • For increasing breast milk production: 10mg taken 3 times daily has been studied[5].

Your doctor may adjust your dose based on how you respond to the medication. Always follow your healthcare provider’s instructions regarding dosage and frequency[7].

Potential Side Effects

While domperidone is generally well-tolerated, it can cause side effects in some people. The most serious potential side effect is an increased risk of heart problems, particularly in older adults or those taking high doses[8]. These heart problems can include:

  • Ventricular tachyarrhythmia: A type of abnormal heart rhythm
  • Sudden cardiac death: An unexpected loss of heart function

Other potential side effects may include headache, stomach cramps, and changes in menstrual periods. If you experience any unusual symptoms while taking domperidone, contact your healthcare provider immediately[9].

Ongoing Research

Researchers are currently studying domperidone for potential use in other conditions:

  • Multiple Sclerosis (MS): Some studies are investigating whether domperidone can help with myelin repair in patients with MS. Myelin is the protective coating around nerve fibers that is damaged in MS[4].
  • Secondary Progressive Multiple Sclerosis (SPMS): Research is ongoing to see if domperidone can help slow the progression of disability in patients with this form of MS[4].

Important Considerations

There are several important things to keep in mind about domperidone:

  • In some countries, including the United States, domperidone is not approved by the Food and Drug Administration (FDA) for general use. It may only be available through special programs or clinical trials[2].
  • Before starting domperidone, your doctor may perform tests, including blood tests and an electrocardiogram (ECG), to ensure it’s safe for you to take[1].
  • If you’re pregnant or breastfeeding, discuss the potential risks and benefits with your healthcare provider before taking domperidone.
  • Always inform your doctor about all medications you’re taking, as domperidone can interact with certain drugs.

Remember, while this article provides general information about domperidone, it’s crucial to consult with your healthcare provider for personalized medical advice. They can provide guidance based on your specific health situation and needs.

Aspect Details
Primary Uses in Trials Gastroparesis, Multiple Sclerosis, Breast Milk Production, Gastrointestinal Motility Disorders
Mechanism of Action Dopamine-2 receptor antagonist, prokinetic agent
Potential Benefits Improved gastric motility, reduced nausea and vomiting, possible myelin repair in MS
Safety Concerns Potential cardiac risks (ventricular tachyarrhythmia, sudden cardiac death)
Dosage in Trials Varies by study; typically 10-30 mg, 3-4 times daily
Approval Status Varies by country; not FDA-approved in the United States
Ongoing Research Myelin repair in MS, efficacy in refractory gastroparesis, safety in postpartum women

FAQ

  • What is domperidone and how does it work? Domperidone is a dopamine-2 receptor antagonist that acts as a prokinetic agent. It affects the chemoreceptor trigger zone and motor function of the stomach and small intestines, potentially improving gastrointestinal motility and reducing nausea and vomiting.
  • In which medical conditions has domperidone been studied? Clinical trials have investigated domperidone's potential benefits in various conditions, including gastroparesis, multiple sclerosis, breast milk production in mothers of preterm infants, and gastrointestinal motility disorders.
  • Is domperidone approved for use in all countries? No, domperidone's approval status varies by country. For example, it is not approved by the Food and Drug Administration (FDA) in the United States but is available in some other countries for specific indications.
  • What are the potential side effects of domperidone? While domperidone is generally well-tolerated, some studies have investigated its potential cardiac risks, particularly ventricular tachyarrhythmia and sudden cardiac death. Other side effects may include headache, dry mouth, and abdominal cramps.
  • How is domperidone being studied in multiple sclerosis? Some clinical trials have explored domperidone's potential to promote myelin repair in multiple sclerosis patients. The medication's ability to increase prolactin levels is thought to possibly improve myelin repair, which could benefit patients with relapsing-remitting or secondary progressive multiple sclerosis.

Ongoing Clinical Trials on Domperidone

  • Study of apomorphine and rifaximin for Parkinson’s disease patients with reduced levodopa effectiveness

    Recruiting

    2 1 1
    Investigated diseases:
    Investigated drugs:
    The Netherlands

  • Study on the Effect of Domperidone on Blood Sugar Control in Type 1 Diabetes Patients with Delayed Stomach Emptying

    Not yet recruiting

    3 1 1
    Investigated diseases:
    Investigated drugs:
    France

Glossary

  • Gastroparesis: A digestive disorder in which the stomach takes too long to empty its contents, leading to symptoms such as nausea, vomiting, and abdominal pain.
  • Prokinetic agent: A type of medication that enhances gastrointestinal motility and improves the movement of food through the digestive system.
  • Myelin: A fatty substance that surrounds and insulates nerve fibers, helping to transmit electrical impulses quickly and efficiently.
  • Prolactin: A hormone primarily known for its role in stimulating milk production in women after childbirth, but also involved in other physiological processes.
  • Ventricular tachyarrhythmia: An abnormally fast heart rhythm that originates in the ventricles (lower chambers of the heart), potentially leading to serious cardiac complications.
  • Sudden cardiac death (SCD): An unexpected death caused by loss of heart function, often related to cardiac arrhythmias.
  • Multiple sclerosis (MS): A chronic neurological condition affecting the central nervous system, characterized by damage to the myelin sheath surrounding nerve fibers.
  • Relapsing-remitting multiple sclerosis (RRMS): A form of MS characterized by clearly defined attacks of new or increasing neurologic symptoms, followed by periods of partial or complete recovery.
  • Secondary progressive multiple sclerosis (SPMS): A phase of MS that follows relapsing-remitting MS, characterized by a steady progression of disability with or without relapses.
  • Expanded Disability Status Scale (EDSS): A method of quantifying disability in multiple sclerosis and monitoring changes in the level of disability over time.

References

  1. https://clinicaltrials.gov/study/NCT04699591
  2. https://clinicaltrials.gov/study/NCT00777439
  3. https://clinicaltrials.gov/study/NCT01378884
  4. https://clinicaltrials.gov/study/NCT02308137
  5. https://clinicaltrials.gov/study/NCT01512225
  6. https://clinicaltrials.gov/study/NCT00761254
  7. https://clinicaltrials.gov/study/NCT01711918
  8. https://clinicaltrials.gov/study/NCT02500108
  9. https://clinicaltrials.gov/study/NCT04024865