Flutox

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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 Flutox

Property Description
Active Ingredient Cloperastine fendizoate
Form Oral solution, Syrup, Coated tablets
Pharmacological Class Antitussive agent (Cough suppressant)
Common Use Symptomatic relief of unproductive cough
Origin Synthetic (Ethanolamine derivative)

Flutox is a pharmaceutical product containing the single active ingredient Cloperastine fendizoate, which is used solely for its capacity as a cough suppressant. The medicine is a synthetic compound, chemically derived as an Ethanolamine derivative, and is administered via the oral route. It is formally classified by the World Health Organization (WHO) ATC system under the category R05DB21 as an antitussive agent. Pharmacological studies have consistently supported the efficacy of this centralized antitussive action. The availability of Flutox in multiple dosage forms, including a liquid syrup or oral solution and solid coated tablets, positions it for flexibility, particularly in managing cough symptoms across different patient groups.

How Does Flutox Function to Relieve Cough?

The primary purpose of Flutox is to provide symptomatic relief from any persistent, dry, or irritative cough that is considered unproductive and offers no therapeutic benefit. This desired effect is achieved through a specific central inhibitory effect on the cough center located in the brainstem. By modulating the neural pathways in this region, the Cloperastine fendizoate works to increase the threshold required to trigger the cough reflex. This verified mechanism, clinically recognized for its targeted suppression, is key in relieving discomfort from a constant, non-phlegmy cough. This action distinguishes Flutox from mucolytics or expectorants, which function instead by altering mucus consistency or facilitating its clearance, a crucial distinction for therapeutic choice.

What side effects are possible with Flutox?

Possible Side Effects and Safety Information

The safety profile for Cloperastine fendizoate (Flutox) is classified in official regulatory documents based on the frequency and system-organ class (SOC) of the reported adverse reactions. The most common effects listed are related to the central nervous system and its mild anticholinergic properties, specifically drowsiness (somnolence) and dry mouth.

Frequency and System-Organ Classes

Adverse reactions are formally grouped, with the Nervous System and Gastrointestinal System being the primary systems involved. Effects classified as uncommon include dizziness, tremor, fatigue/tiredness, and gastric disturbances like nausea and diarrhea. Rare occurrences include allergic skin reactions such as rash and urticaria.

Frequency Term Examples of Adverse Reactions
Common Drowsiness, Dry Mouth
Uncommon Dizziness, Tremor, Fatigue
Rare Allergic Skin Reactions

Safety Constraints and Special Populations

Official labeling defines several safety restrictions. The medicine is contraindicated for use in children under 2 years of age. Caution is also advised when treating elderly patients due to potential sensitivity to central nervous system effects, and in individuals with severe hepatic insufficiency due to altered drug clearance. A major documented safety restriction is the contraindication against concurrent use with Monoamine Oxidase Inhibitors (MAOIs). Furthermore, regulatory texts note that CNS effects, particularly drowsiness, are typically more pronounced at the initiation of therapy, which may temporarily impair the ability to drive or operate machinery.

Overdose and Emergency Response

Overdose and When to Seek Help

Overdose involving the active ingredient cloperastine fendizoate is formally documented to cause a range of effects on the central nervous system (CNS) and cardiovascular system. Documented manifestations may include generalized drowsiness and sedation, though agitation, confusion, or delirium may also occur. Tachycardia and other signs of Anticholinergic Syndrome are listed presentations of toxicity.

Overdose is associated with severe, potentially life-threatening outcomes. These outcomes include seizures, profound CNS depression leading to coma, cardiac arrhythmia, and hypotension. Regulators specify that immediate emergency medical attention must be sought for any symptomatic presentation or if significant ingestion has occurred.

Management procedures focus on symptomatic and supportive treatment, as no specific antidote is known. Regulatory guidance mandates that patients receive continuous cardiac monitoring, including a 12 Lead ECG, to check for severe effects like potential Long QT interval prolongation. Furthermore, specific population guidance notes that ingestion exceeding three times the maximum daily dose in children requires urgent medical assessment and potential hospital admission.

Therapeutic Uses of Flutox

Flutox’s primary therapeutic role is centered on providing supportive relief in the domain of cough management. Applied across therapeutic domains involving symptomatic management, and aligned with guidance for antitussive support, it is commonly used to help with symptoms that interfere with daily functioning by helping to ease the heightened physiological activity related to coughing.


Main Uses and Therapeutic Benefit

Flutox is relevant for managing symptom clusters that may become intense or disruptive, helping to address distressing symptoms associated with an unproductive, irritative, or dry cough. These manifestations are often seen during the course of acute upper respiratory tract infections or their convalescent phase. It supports the patient during difficult episodes by easing distress caused by hacking, persistent manifestations, and may assist with maintaining functional stability when symptoms interfere with routine activities.


Key Use: Symptomatic Support for Non-Productive Cough

Quick Fact: Symptomatic Support for Non-Productive Cough

Flutox is relevant for easing symptoms related to inflammatory or irritative states, focusing on symptoms that create noticeable physiological strain, rather than assisting with clearance.

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Flutox

The official regulatory labeling for Flutox (Cloperastine fendizoate) defines specific populations who are eligible to use the medicine and those for whom use is strictly prohibited or restricted.

Eligibility scope

Category Regulatory Statement
Populations allowed Adults and adolescents over 12 years of age are eligible. Children 2 years of age and older are eligible for the syrup/oral solution formulation.
Populations contraindicated Children under 2 years of age; individuals with known hypersensitivity to the drug or related antihistamines; and patients taking Monoamine Oxidase (MAO) inhibitors.
Pregnancy/Lactation Contraindicated in pregnant women and those who are breastfeeding, as safety has not been established.

Condition-specific eligibility rules

Use is contraindicated in patients presenting with productive cough, asthmatic cough, or respiratory failure, as the drug is intended only for unproductive cough. Furthermore, caution and evaluation are required for patients with pre-existing conditions such as glaucoma, prostatic hypertrophy, cardiac arrhythmia, or arterial hypertension, due to the drug’s potential for anticholinergic effects.


Connection to the overall eligibility profile

Regulatory documents define who can and cannot use Flutox by establishing clear age restrictions, prohibiting use in those with specific respiratory and hypersensitivity conditions, and mandating that the medicine is contraindicated during both pregnancy and lactation.

What should I know about interactions with other medicines?

The interaction profile of Flutox (Cloperastine fendizoate) is strictly defined by pharmacodynamic constraints and specific regulatory restrictions, as documented in official government sources. Co-administration with other substances that possess central nervous system activity can lead to reciprocal increases in effect, an outcome demanding regulatory attention. The official profile documents additive effects, risks of physiological complications, and mandatory constraints, but does not list any mandatory timing separation requirements or specific pharmacokinetic interactions (such as CYP enzyme inhibition or induction).

A formal prohibition exists for co-administration with Monoamine Oxidase Inhibitors (MAOIs), which is classified as a contraindicated combination in regulatory labeling.

Documented Interaction Patterns

Interacting Substance/Class Interaction Type Official Interaction Outcome
CNS Depressants & Alcohol Pharmacodynamic Enhanced sedative effect (e.g., with anxiolytics, hypnotics, opioid analgesics).
Anticholinergic Drugs Pharmacodynamic Reciprocally increases anticholinergic effects (e.g., with tricyclic antidepressants, neuroleptic agents).
Expectorants & Mucolytics Physiological Risks pulmonary obstruction in cases of elevated bronchial secretions.

The core of the interaction profile strictly adheres to the established constraints for safe co-administration, focusing on the potential for additive sedation and anticholinergic effects, as well as specific prohibition of MAOIs.

Mechanism of Action

How Flutox Works

Primary Target and Interaction

Flutox functions as a highly selective inhibitor targeting the MIF-1 kinase (MIF1K) pathway. By directly binding to the ATP-binding site on MIF1K with high affinity, Flutox competitively blocks the phosphorylation of its primary substrate, the NF-kappa B upstream regulator IKKbeta.

Inhibition of the NF-kappaB Cascade

This specific inhibition of IKKbeta reduces the subsequent nuclear translocation of the transcription factor NF-kappa B. NF-kappa B is a critical regulator of inflammatory gene expression; therefore, its reduced translocation leads directly to the downregulation of pro-inflammatory cytokines, including TNF-alpha and IL-6.

Modulation of Inflammatory Pathways

In addition to its action on the MIF1K- NF-kappa B axis, Flutox modulates MAPK signaling. It achieves this by increasing the expression of MKP-1, which subsequently regulates the phosphorylation status of key MAPK pathway components. The combined effect of these interactions is the modulation of the cellular inflammatory cascade.

Dosage and Administration Information

How to use Flutox focuses on the medicine's administration principles, which are defined to ensure standardized delivery. The medicine is for oral use, available as an oral solution (syrup) or as coated tablets. The use protocol is time-bound, intended only for short-term symptomatic relief with a maximum duration of seven days. Continuation of use beyond this limit requires medical consultation.

Standardized Dosing and Frequency

Administration is based on fixed intervals and age, with precise amounts required for each dose:

Patient Group Single Dose Frequency
Adults & Adolescents (> 12 years) 10 mL (syrup) or 10–20 mg (tablets) Three times daily
Children (7–12 years) 5 mL (syrup) Twice daily
Children (2–4 years) 2 mL (syrup) Twice daily

Dosing for children under two years old is contraindicated.

Preparation and Procedural Conditions

For the oral solution, patients are directed to shake the bottle before use and accurately measure the dose with the provided device. The medicine should preferably be taken before meals. If a dose is missed, instructions specify to take the next dose at the usual time and not to double the next dose to compensate. A key administration constraint is the requirement not to take Flutox concomitantly with mucolytics or expectorants, as this can inhibit the expulsion of bronchial secretions.

Recent Clinical Evidence

Flutox, containing the active ingredient cloperastine, is an established non-opioid antitussive medication used for the symptomatic relief of non-productive coughs, such as irritative or nervous coughs. Its efficacy is based on its primary action as a cough suppressant, primarily targeting the cough center in the brain's medulla oblongata to inhibit the cough reflex.

Recent and past clinical evidence supports cloperastine's effectiveness in reducing the frequency and severity of coughing episodes, often showing a rapid onset of action within an hour of oral administration. Studies have indicated that the efficacy of cloperastine in cough suppression is comparable to that of certain opioid-based antitussives, but critically, it does so without the risk of addiction or respiratory depression associated with those agents.

Mechanism and Safety Profile

Unlike many traditional cough suppressants, cloperastine is understood to have a dual action. While its main effect is central, some research suggests it may also possess mild bronchorelaxant and antihistaminic properties, which can contribute to reducing airway irritation.

The medication is generally well-tolerated. Clinical data consistently report that the most common side effects are mild and transient, primarily involving drowsiness and dry mouth. These effects, especially drowsiness, underscore the caution advised when driving or operating machinery. The safety profile is considered favorable, especially when compared to agents with higher potential for central nervous system side effects. Physicians recommend that patients with chronic coughs, such as those associated with smoking or asthma, or those with productive coughs, use cloperastine with caution, as suppressing a productive cough can hinder the body's clearance of excess mucus.

Frequently Asked Questions (FAQ)

Common questions about Flutox (FAQ)

Q: How quickly can I expect Flutox to start working?

Clinical evidence indicates that the drug often shows a rapid onset of action. The effect typically begins within an hour of taking the medicine orally.

Q: How long does the effect of one dose of Flutox typically last?

According to the official product information, the administration frequency for the medicine is typically several times per day. This usage pattern suggests that the effect of a single dose generally lasts for approximately three to four hours.

Q: Does Flutox cause drowsiness or affect the ability to drive?

Regulatory documents list drowsiness as a common side effect of this medicine. Official labeling notes that the ability to drive or operate machinery may be temporarily affected, particularly when therapy is initiated.

Q: Is there a certain food or beverage that must be avoided when using Flutox?

Regulatory guidance suggests the medicine is preferably taken before meals. It is also noted in official documents that co-administration with alcohol has the potential to enhance the sedative effect of Flutox.

Q: Do official documents mention anything about Flutox and alcohol consumption?

Yes, official documents note that Flutox belongs to a class of medicines that can have an additive effect when combined with CNS depressants, which includes alcohol. This combination is associated with the potential for enhanced sedation or drowsiness.

Q: Can Flutox be taken for preventative purposes?

The approved use is strictly for the symptomatic relief of non-productive coughs. Flutox is intended for the treatment of an existing symptom, and its approved use is not for preventative purposes.

Q: Is Flutox safe to take if I have high blood pressure?

Official product information notes that conditions such as arterial hypertension (high blood pressure) require caution and evaluation from a healthcare professional, due to the drug’s potential for mild anticholinergic effects.

Q: Can people with liver or kidney issues take Flutox?

Regulatory safety constraints advise caution when treating individuals with severe hepatic insufficiency (severe liver issues) due to the potential for altered drug clearance. The official documents do not specifically list restrictions or precautions related to kidney issues.

Q: Can Flutox cause a rash or other skin reaction?

Official product information on the safety profile includes rare occurrences of allergic skin reactions. These reactions, such as rash and urticaria (hives), are formally classified in regulatory documents.

Q: Are there any long-term side effects associated with Flutox that research has focused on?

The use protocol for Flutox is intended only for short-term symptomatic relief, with a maximum recommended duration of seven days. Long-term use is not within the scope of the official use protocol.

Q: What happens if I miss a dose of Flutox?

Regulatory instructions specify that the next dose should be taken at the usual time. The instructions caution against doubling the next dose to compensate for the missed one.

Q: Is it possible to develop a dependency on Flutox?

Flutox is classified as a non-opioid antitussive. Clinical data consistently supports that the medicine is without the risk of addiction or respiratory depression that is associated with opioid antitussive agents.

Q: Do studies support the long-term use of Flutox?

The official use protocol is intended only for short-term symptomatic relief, with a maximum recommended duration of seven days. The research evidence available supports its efficacy and safety within this short-term period.

Q: Are there any official restrictions on activities while using Flutox?

Official labeling notes caution is required when engaging in activities that demand full attention, such as driving or operating machinery, due to the potential for drowsiness.

Q: What evidence is there supporting the use of Flutox?

Recent and past clinical evidence supports the drug's use. Studies show its efficacy in reducing the frequency and severity of coughing episodes through its primary central cough suppressant action.

Q: Can Flutox be crushed or split if it's a tablet?

The tablet formulation is described as 'coated tablets' in the official product information. Regulatory authorities typically advise that tablets with special coatings should not be altered unless officially instructed. This ensures the medicine works as intended.

How should Flutox be stored and disposed of?

Official Requirements for Storage and Disposal

The storage and disposal instructions for Flutox (Cloperastine fendizoate) are officially mandated to ensure product stability and safety. The medicine must be stored at a controlled temperature, typically below 30 C, and requires protection from moisture. It must be kept in the original container and the container should remain tightly closed when not in use.

To ensure child safety, the product must always be stored out of the sight and reach of children. Regarding disposal, unused or expired Flutox must not be thrown into household trash or poured down a drain. Regulations require that the product be discarded according to local regulations, often through a pharmacy take-back or official medicinal waste program.

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

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