Cinnarizine-Domperidone

What is Cinnarizine-Domperidone?

Cinnarizine-Domperidone is a combination medication that pairs two drugs with different mechanisms:

• Cinnarizine, a medication with antihistamine and calcium channel blocking properties
• Domperidone, a dopamine receptor antagonist that acts on the gastrointestinal system

This combination is available and used in a number of countries, though neither cinnarizine nor domperidone is approved by the FDA for general marketing in the United States. Domperidone is available in the U.S. only in very limited circumstances through a special FDA program for specific conditions, and is not otherwise legally marketed there; cinnarizine is not approved or marketed in the U.S. at all.

Where available, this combination may be used for:

• Management of vertigo and dizziness, particularly when accompanied by nausea and vomiting
• Symptoms related to vestibular (inner ear balance) disorders

Available Formulations and Strengths

Where available, this combination is typically found as an oral tablet, commonly in a combined strength such as:

• Cinnarizine-Domperidone 20mg-15mg

Available strengths and formulations vary by country and manufacturer. Because this combination is not approved for general marketing in the United States, patients located there will not find an FDA-recognized product, and any product obtained would fall outside standard U.S. regulatory oversight.

What is the Recommended Dosage of Cinnarizine-Domperidone?

Dosage of this combination product, where it is an approved medication, is individualized and depends on several factors, including:

• The severity of symptoms
• Age
• Liver function, since both components are processed by the liver
• Cardiac history, given specific cardiac safety considerations associated with the domperidone component
• Individual tolerability

Dosage Forms Available

• Oral tablets, typically taken with food

Important Dosing Guidance

• Dosing must always follow the specific instructions provided by a licensed physician or specialist, in a country where this combination is an approved medication.
• Treatment with the domperidone component is generally recommended for the shortest duration necessary, due to cardiac safety considerations discussed below.
• Patients should not adjust their dose without medical guidance.
• This page does not provide individualized dosing instructions, as appropriate dosing depends on clinical evaluation and is not established for general use in the United States.

How Cinnarizine-Domperidone Works

This combination works through two different mechanisms:

• Cinnarizine acts on histamine receptors and calcium channels, which is thought to help stabilize the vestibular system and reduce nausea associated with vertigo and motion-related symptoms.
• Domperidone blocks dopamine receptors involved in the body’s nausea and vomiting reflex, and also promotes movement of the stomach and intestines, which may help relieve associated gastrointestinal symptoms.

Together, these two components are intended to address both the balance-related symptoms of vertigo and the associated nausea and vomiting.

It is important to understand that this combination manages symptoms but does not cure the underlying condition causing vertigo or related nausea.

Is a Prescription Required to Buy Cinnarizine-Domperidone Online?

Where this combination is legally available, yes, it generally requires a prescription or is available under pharmacist guidance, depending on the country.

Important note for patients in the United States: This combination is not approved for general marketing in the United States. Domperidone is available in the U.S. only through a restricted FDA program for specific medical circumstances, and cinnarizine is not approved at all. Any product offered for sale to U.S. patients online outside these channels would not be operating within an FDA-recognized regulatory framework, and its safety, purity, and authenticity could not be assured.

• Patients should consult a physician or relevant specialist, such as an ENT specialist, neurologist, or gastroenterologist, in a jurisdiction where this combination is available.
• Patients should be cautious of counterfeit, unregulated, or improperly sourced products, particularly when purchasing online across international borders.
• Medication should only be obtained from licensed, accredited pharmacies operating within applicable local regulations.

Side Effects of Cinnarizine-Domperidone

As with any medication, this combination can cause side effects, which may reflect the effects of either or both components. Not everyone experiences side effects, and their severity can vary from person to person.

Common Side Effects

These are generally mild and may include:

• Drowsiness (associated with the cinnarizine component)
• Dry mouth
• Headache
• Gastrointestinal upset, such as stomach discomfort
• Breast tenderness or changes in menstrual cycle (associated with the domperidone component, related to hormonal effects)

Serious Side Effects

Although less common, some side effects can be more serious and require prompt medical attention:

• Irregular heartbeat or other heart rhythm changes, associated specifically with the domperidone component, which carries a known risk of QT interval prolongation, a change in the heart’s electrical activity that can lead to serious arrhythmias
• Fainting or significant dizziness related to heart rhythm changes
• Symptoms resembling Parkinson’s disease, such as tremor, muscle stiffness, or slowed movement, particularly with longer-term use of the cinnarizine component
• Depression or significant mood changes
• Involuntary movements
• Signs of an allergic reaction, such as swelling of the face, lips, or throat, or difficulty breathing

Patients should seek immediate medical attention if they experience irregular heartbeat, fainting, chest palpitations, new tremor or stiffness, a severe allergic reaction, or any symptoms that feel severe or sudden.

This is not a complete list of possible side effects. Patients should discuss their full risk profile with a licensed healthcare provider.

Drug Interactions

Cinnarizine-Domperidone carries interaction risks associated with both components, and the domperidone component in particular has significant, well-documented interaction concerns:

• Medications that prolong the QT interval, such as certain antibiotics, antifungal medications, and other heart-rhythm-affecting drugs, which can significantly increase cardiac risk when combined with domperidone
• Strong inhibitors of certain liver enzymes (such as some antifungal or antiviral medications), which can raise domperidone levels and increase cardiac risk
• Other central nervous system depressants, such as sedatives, which may increase drowsiness related to the cinnarizine component
• Alcohol, which may increase sedative effects
• Other medications associated with movement-related side effects

Over-the-Counter Medications and Supplements

Many over-the-counter products, including some cold and allergy remedies, may interact with one or both components of this medication. Patients should not assume a product is safe simply because it does not require a prescription.

Patients should provide their healthcare provider or pharmacist with a complete list of all prescription medications, over-the-counter products, vitamins, and herbal supplements they are currently taking before starting this combination, given the serious cardiac interaction risks involved.

Safety & Important Considerations

• Cardiac Safety: The domperidone component carries a recognized risk of QT interval prolongation and serious heart rhythm abnormalities, particularly at higher doses, with longer use, in older patients, or when combined with interacting medications. This is one of the most important safety considerations for this combination product.
• Liver Function: Because both components are processed by the liver, patients with liver impairment should use this combination with caution and specialist guidance.
• Kidney Function: Patients with kidney impairment may require dose adjustment, particularly for the domperidone component.
• Pregnancy and Breastfeeding: The safety of this combination during pregnancy and breastfeeding has not been well established. Domperidone can increase prolactin levels and affect milk production; this should be discussed with a specialist.
• Older Adults: Older adults are at increased risk of cardiac side effects from the domperidone component and may also be more sensitive to drowsiness from the cinnarizine component; this population requires particular caution.
• Depression History: Patients with a history of depression should discuss this with their provider before starting this combination, due to the cinnarizine component’s association with mood-related side effects.
• Parkinson’s-like Symptoms: The cinnarizine component has been associated with Parkinson’s-like symptoms, particularly with longer-term use.
• Duration of Use: Due to the cardiac risks associated with domperidone, use of this combination is generally recommended for the shortest duration necessary to manage symptoms.
• Monitoring: Patients, particularly those with existing heart conditions or those on interacting medications, may need cardiac monitoring, such as an ECG, before and during treatment.
• Regulatory Status: This combination is not approved for general marketing in the United States.

This page does not include every possible warning. A full safety review should be conducted by a licensed healthcare provider based on the patient’s individual health history.

Who This Medication Is For

Where this combination is available, it is generally used by adults experiencing:

• Vertigo or dizziness accompanied by nausea and vomiting related to vestibular disorders

Its use is based on a clinical evaluation by a physician or specialist, with particular attention to cardiac risk factors given the domperidone component.

Who Should Not Take Cinnarizine-Domperidone

This combination may not be appropriate for individuals who:

• Have a known allergy or hypersensitivity to cinnarizine, domperidone, or any of the product’s ingredients
• Have a known heart rhythm disorder, including QT interval prolongation, or a history of significant heart disease
• Are taking other medications known to prolong the QT interval or that significantly affect domperidone’s processing by the liver
• Have significant liver impairment
• Have a prolactin-releasing pituitary tumor (prolactinoma), due to the domperidone component’s hormonal effects
• Have a history of depression or other significant mood disorders, without specialist guidance
• Have a history of Parkinson’s disease or other movement disorders
• Are pregnant or breastfeeding, without specialist guidance

This list is not exhaustive. A full medical history review by a licensed healthcare provider, including assessment of cardiac risk factors, is required before starting this combination.

What to Do If You Miss a Dose

If a dose of this combination is missed:

• Take the missed dose as soon as it is remembered, unless it is close to the time of the next scheduled dose.
• Do not double the dose to make up for a missed one.
• If unsure about what to do, contact a pharmacist or healthcare provider for guidance.

Related medications to Cinnarizine-Domperidone

Other medications or approaches used for vertigo and associated nausea, depending on the condition and local approval status, may include:

• Cinnarizine or betahistine used alone for vertigo-related symptoms
• Other anti-nausea medications with a different safety profile, as determined by a specialist
• Vestibular suppressant medications for specific vertigo diagnoses

These alternatives work differently and may have different side effect and cardiac risk profiles. Switching treatments should only be done under the guidance of a licensed healthcare provider, based on an individualized evaluation, particularly given the cardiac considerations associated with domperidone.

Storage Instructions

• Store Cinnarizine-Domperidone tablets at room temperature, generally between 68°F and 77°F (20°C to 25°C), unless otherwise directed on the label.
• Keep the medication in its original container, protected from excess moisture and light.
• Store in a location away from direct sunlight and humidity, such as away from bathrooms.
• Keep out of reach of children and pets, ideally in a locked or secured cabinet.
• Do not use medication that is expired or improperly stored, and dispose of unused medication according to local guidelines or pharmacist instructions.

Disclaimer:

This page is for educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment.

Cinnarizine-Domperidone is not approved for general marketing in the United States. Domperidone carries a recognized risk of serious cardiac side effects, including QT interval prolongation, and is available in the U.S. only through a restricted FDA program for specific circumstances. Patients should consult a licensed healthcare provider, such as a physician, ENT specialist, or cardiologist as needed, in a jurisdiction where this medication is available before starting, changing, or stopping treatment. Treatment decisions must be based on a full clinical evaluation, including assessment of cardiac risk, by a qualified provider who understands the patient’s complete medical history and current medications.