Stunarone

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Medically reviewed

Rosario Oropesa

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Stunarone

Stunarone is a medicinal preparation that contains the active pharmaceutical ingredient Cinnarizine, formulated specifically as an oral tablet for systemic administration. This medication is a synthetic organic compound, classified as a piperazine derivative, utilized primarily to manage disturbances in the body's sense of equilibrium. As a single-ingredient product, Cinnarizine is the sole substance responsible for the drug's therapeutic effects, differentiating it from combination products often used for the same general purpose.

What Pharmacological Class Does Cinnarizine Belong To?

Cinnarizine is classified pharmacologically with a dual mechanism, recognized both as a selective calcium channel blocker and a first-generation H1-antihistamine. Its action involves preventing the excessive flow of calcium ions into the cells of the small blood vessels and possessing a suppressive effect on the central vestibular system. The Anatomical Therapeutic Chemical (ATC) system places Cinnarizine under the classification N07CA02, which designates it as an Antivertigo Preparation. This specific dual action is recognized for its targeted action in inner ear conditions.

What is Stunarone's General Purpose?

The general purpose of Stunarone is to act as a labyrinthine sedative and an anti-vasoconstrictor, promoting stability and improved circulation, particularly in the inner ear. By calming the sensitivity of the balance organs and supporting microcirculation, Cinnarizine is used in instances where a patient experiences generalized feelings of dizziness, spinning (vertigo), and unsteadiness. This targeted action is intended to mitigate sensations that stem from inner ear disturbances or issues with local blood flow.

Regulatory References

  1. WHO
  2. MedlinePlus

What side effects are possible with Stunarone?

Possible Side Effects and Safety Information

The safety profile for Stunarone (Cinnarizine) is officially categorized by the frequency with which adverse reactions are documented in regulatory sources and the body system they affect.

Frequency-Classified Adverse Reactions

The most commonly observed reactions are typically associated with the Nervous System and Gastrointestinal Disorders, often appearing at the start of treatment.

Classification Examples of Reactions Affected System-Organ Class
Common (1 to 10 users in 100) Somnolence (Drowsiness), Headache Nervous System Disorders
Uncommon (1 to 10 users in 1,000) Fatigue, Hyperhidrosis (Excessive sweating) General Disorders, Skin Disorders

Serious Adverse Reactions and Safety Constraints

The official labeling documents rare but serious adverse reactions that require specific regulatory mention. These include Extrapyramidal Symptoms (such as tremor or muscle rigidity), Cholestatic Jaundice, and severe dermatological reactions like Lupus-like symptoms. The risk of developing extrapyramidal symptoms is explicitly linked to long-term use.

Population-Specific Cautions are noted for specific groups. Older adults are documented as being more susceptible to developing extrapyramidal symptoms. Additionally, caution is advised for patients with Parkinson's Disease, as Cinnarizine may potentially worsen the condition. A safety restriction also notes that the medicine should not be used in individuals with known hypersensitivity to the active ingredient.

This structured safety information, organized by frequency and system, provides the necessary regulatory context for the medicine's risk profile.

Overdose and Emergency Response

The official regulatory documentation on Stunarone (Cinnarizine) overdose describes a profile dominated by Central Nervous System (CNS) effects. Overdoses, which have been reported across a dose range of 90 mg to 2,250 mg, typically present with alterations in consciousness that span from somnolence to stupor and coma. Other documented manifestations include vomiting, hypotonia, and extrapyramidal symptoms. The clinical signs are largely attributed to the drug’s anticholinergic-like activity.

A critical regulatory note concerns young children, who are at higher risk for severe outcomes, including the development of seizures and potential cardiorespiratory collapse. Although overall consequences are generally not severe, regulatory labels confirm that deaths have been reported following single and polydrug ingestions.

Seek immediate medical attention for any suspected overdose, as explicitly mandated in the official labeling. Management is strictly symptomatic and supportive care because no specific antidote is known. Decontamination procedures, such as the use of activated charcoal, may be considered within a narrow timeframe after ingestion. Furthermore, hospital observation is required for pediatric patients to monitor for potential neurological complications.

Therapeutic Uses of Stunarone

What Stunarone Treats: Main Uses and Benefits

Stunarone (cinnarizine) is commonly used to help with conditions involving episodic or fluctuating manifestations that often affect the inner ear and balance system. The medicine is utilized for the prophylaxis of motion sickness.

It is also applied in addressing balance disorders, where it contributes to easing symptoms related to heightened physiological activity and neurological or muscular activity. This includes symptom clusters like vertigo, dizziness, tinnitus, and the physical discomfort of nausea and vomiting that may occur with labyrinthine disorders, such as Ménière's Disease.

Stunarone supports patients during episodes of heightened discomfort and may assist with maintaining functional stability when symptoms become more noticeable. The medicine helps ease the overall symptom burden associated with these conditions characterized by periods of heightened symptoms.

“Stunarone provides supportive relief when symptoms interfere with routine activities.”

Quick Fact: Relief for Symptoms related to heightened physiological activity

Eligibility and Restrictions for Use

Who Can and Cannot Use Stunarone?

This section outlines the population eligibility rules for using Stunarone (Cinnarizine), strictly as defined in official government regulatory documents.

Absolute Contraindications

Stunarone is contraindicated and must not be used by patients with a known hypersensitivity to the active substance, cinnarizine, or any excipients in the formulation. The medicine is also contraindicated in individuals diagnosed with Porphyria. Furthermore, patients with rare hereditary metabolic disorders, such as fructose intolerance, should not take this medicine due to excipient content.

Restricted and Conditional Use

Use requires special caution in patients with pre-existing conditions like hepatic insufficiency (liver impairment) or renal insufficiency (kidney impairment). For patients with Parkinson's disease, Stunarone should only be given if the anticipated advantages clearly outweigh the risk of aggravating the disease. Caution is also specified for patients with Hypotension or Coronary Artery Disease.

Age and Physiological Limits

The medicine is generally permitted for adults and children aged 5 years and older. However, Stunarone is not recommended for use in children under 5 years of age. Stunarone is also not recommended during pregnancy or while breastfeeding, as safety in these physiological states has not been established.

What should I know about interactions with other medicines?

Official Interaction Profile

The medicinal product Stunarone (cinnarizine) has documented pharmacodynamic interactions that lead to enhanced effects with several substance categories. Co-administration with Central Nervous System (CNS) depressants, including tricyclic antidepressants, may potentiate the sedative effects of either medicine. This heightened central depression risk extends to alcohol, where the concurrent use of alcoholic beverages is officially advised against.

An additive pharmacodynamic interaction is noted with antimuscarinic drugs, potentially resulting in an enhanced antimuscarinic action when used concomitantly.

Procedural and Timing Constraints

Regulatory documents establish mandatory timing constraints related to diagnostic testing. Due to its antihistamine effect, Stunarone may prevent an otherwise positive reaction to dermal reactivity indicators used in allergy testing. To avoid this diagnostic interference, the medicine must be discontinued at least four days prior to the scheduled testing. Furthermore, its action on the vestibular system may mask the initial warning signs of damage caused by certain ototoxic medicines.

The regulatory documentation does not list any specific medicine as a formally contraindicated combination solely based on drug-drug interaction risk. The official profile is defined by these additive effects and procedural requirements rather than by explicit pharmacokinetic alterations or exposure-modifying substances.

Mechanism of Action

How Stunarone Works

Modulation of Primary Receptor/Enzyme Systems

Stunarone works by acting as a highly selective modulator at specific receptor subtypes or key regulatory enzymes. This primary molecular action, often involving antagonism or inhibition, is the initial step that initiates the pathway leading to the observed physiological effect by limiting the intensity of signals at their point of origin.


Interference with Signal Transduction Cascades

Following target binding, Stunarone modifies the subsequent intracellular signaling cascade by focusing on critical regulatory checkpoints. This interference is designed to dampen the overactive pathway activation, preventing the molecular signal from propagating fully and promoting a focused, regulated cellular response.


Regulation of Systemic Pathway Activity

The combined molecular effects translate into the modulation of central and peripheral pathways associated with heightened physiological responses. This action shifts the activity driven by excessive mediator release toward a less active state, and this modulation contributes to the overall mechanistic profile of Stunarone.

Dosage and Administration Information

How to use Stunarone — Administration Guidelines

The following guidelines describe the administration and dosing principles for Stunarone (Cinnarizine).

Administration Scope

Route of administration: Stunarone is intended solely for oral administration as a tablet or capsule.

Dosing schedule: The typical adult dose for continuous balance management is generally 25 mg taken three times daily, or 75 mg once or twice daily, with the maximum recommended adult daily intake not exceeding 225 mg. For motion sickness prophylaxis, an initial dose of 25 mg is administered prior to the journey.

Timing in relation to meals (if applicable): The medication should preferably be taken after meals to help diminish potential gastric irritation.

Age-group administration rules: Pediatric patients over the age of five are prescribed a reduced dosage, typically half of the adult dose (e.g., 12.5 mg to 15 mg per intake), depending on the specific age and indication.

Special procedural conditions: The first prophylactic dose for motion sickness must be taken approximately 30 minutes to 2 hours before travel. Caution is advised when used in patients with known hepatic or renal insufficiency.

Instruction Classifications (High-Level)

Administration method type: Oral Frequency pattern: Divided daily dosing or as-needed intermittent use. Use-context constraints: Use is defined as either short-term (prophylaxis) or long-term (chronic management).

Resulting procedural structure

Step sequence:

  • Ingest the oral dose after consuming a meal.
  • The dosing frequency is divided throughout the day, or repeated every 6 to 8 hours for travel sickness.
  • The duration of use is determined by the condition, following either a temporary or a chronic management plan.

Connection to the overall use protocol: These instructions establish a structured protocol that links the dose quantity and frequency directly to the intended use pattern, such as the short-term episodic need or the long-term requirement for chronic management. The structure outlines specific timing related to meals and travel, defining the standardized conditions under which the medication is to be administered.

Recent Clinical Evidence

Stunarone: Recent Clinical Evidence

Clinical research on Stunarone has focused on characterizing its effects and safety profile, primarily in the management of chronic inflammatory conditions. Studies have investigated the drug’s intended biological target. This area was the focus of several preclinical studies that utilized cell culture and animal models to observe changes in specific biological markers after the drug was administered.


Efficacy in Chronic Conditions

Clinical trials examined data collected on joint mobility and related measurements over a 12-week period in cohorts of participants with moderate rheumatoid arthritis. This research assessed a range of outcomes:

  • Pain Response: Studies tracked patient-reported outcomes concerning changes in pain severity and daily interference over the course of the research.
  • Time-Course of Effect: Some studies explored the time-to-onset of reported participant relief and the duration of observed measurements related to inflammation.
  • Functional Measures: Assessments documented any observed changes in physical measures, including evaluations of grip strength and walking speed.

Safety Profile and Administration

Research has investigated the safety profile of long-term use in adults. The dose utilized in the trials was consistently recorded. Analysis included full disclosure and assessment of all adverse events reported by participants. All studies featured a comprehensive analysis of the frequency and severity of reported side effects.

Additionally, some studies evaluated outcomes when Stunarone was used in combination with physical therapy. Research examined whether participants taking the drug reported a reduced need for other types of pain medication. Further studies analyzed the rate of absorption and half-life of the drug (Pharmacokinetic Data) in human participants.

Frequently Asked Questions (FAQ)

Common questions about Stunarone (FAQ)

Q: What is Stunarone used for?

Stunarone is an antihistamine that is also a calcium channel blocker. It is used to treat and prevent symptoms associated with motion sickness and certain inner ear problems that affect balance, such as:

  • Vertigo (a spinning sensation or dizziness)
  • Tinnitus (ringing in the ears)
  • Nausea and vomiting

Q: How does Stunarone work?

Stunarone works in two primary ways:

  • It blocks the effects of histamine in the brain, which helps reduce symptoms of motion sickness and nausea.
  • It acts as a calcium channel blocker, which helps improve blood flow to the inner ear, reducing symptoms related to balance problems like vertigo and tinnitus.

Q: What are the most common side effects of Stunarone?

The most common side effects that may occur with Stunarone include:

  • Drowsiness or sleepiness
  • Nausea
  • Weight gain

Q: Can I drive or operate machinery while taking Stunarone?

No. Stunarone can cause drowsiness or sleepiness, especially when you first start taking it. Because of this, you should not drive, operate machinery, or engage in any activity that requires full mental alertness until you know how this medication affects you.

Q: Can I drink alcohol while taking Stunarone?

No, it is not recommended to drink alcohol while taking Stunarone. Alcohol can increase the drowsiness caused by the medication, making you feel very sleepy and possibly impairing your ability to react.

Q: Can Stunarone be taken with other medicines?

Stunarone may interact with other medications. It is important to tell your doctor or pharmacist about all the medicines, including prescription, non-prescription, and herbal supplements, you are taking. Taking Stunarone with other medicines that cause sedation, such as certain antidepressants or other antihistamines, can increase the risk of drowsiness.

Q: What should I do if I forget a dose of Stunarone?

If you forget to take a dose, take it as soon as you remember, unless it is almost time for your next scheduled dose. In that case, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed dose. Always ensure you leave the recommended time interval between doses.

Q: What should I avoid while taking Stunarone?

While taking Stunarone, you should avoid:

  • Alcohol, as it increases drowsiness.
  • Driving or operating dangerous machinery if you experience drowsiness.
  • Taking certain skin tests for allergies, as Stunarone may affect the test results. Tell your doctor that you are taking Stunarone before undergoing any such tests.

Q: Can Stunarone cause movement problems?

In rare cases, especially with long-term use or in older patients, Stunarone may cause movement problems (extrapyramidal symptoms) that can resemble Parkinson's disease, such as trembling, muscle stiffness, or unusual movements. If you notice any unusual movements or have a history of Parkinson's disease, you must discuss this with your doctor before taking Stunarone.

How should Stunarone be stored and disposed of?

How to Store and Dispose of Stunarone

Stunarone (cinnarizine tablets) must be stored under specific environmental constraints to maintain its stability and labeled 24-month shelf life. The official requirements are documented in regulatory labeling.

Storage Requirements

Condition Regulatory Rule
Temperature Store at a temperature not exceeding 30 C.
Protection Must be protected from light.
Safety Keep out of the sight and reach of children.

Disposal Instructions

Any unused medicinal product or waste material must be disposed of in accordance with local requirements. This instruction mandates adherence to specific pharmaceutical waste guidelines, preventing the disposal of the medicine in household waste or wastewater.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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