Arotel

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Arotel

Arotel is a foundational, prescription-only medicine used for the maintenance management of chronic airway conditions. Its action is highly specific, targeting inflammatory processes to help stabilize respiratory function over time.

Property Description
Active ingredient Montelukast sodium
Form Oral tablets (film-coated, chewable) and oral granules
Pharmacological class Leukotriene Receptor Antagonist (LTRA)
Common use Maintenance therapy for chronic airway conditions
Origin Synthetic compound

What Type of Medicine is Arotel? (Identity and Pharmacological Class)

Arotel is classified as a highly selective Leukotriene Receptor Antagonist (LTRA). Its single, synthetic active ingredient is Montelukast sodium, a chemical entity that has been clinically recognized for its role in managing inflammatory mediators.

This pharmacological designation confirms its targeted mechanism: Montelukast is specifically designed for the competitive inhibition and antagonism of the CysLT1 receptors. This targeted approach provides a systemic, long-term intervention that differentiates it from broad-spectrum respiratory treatments, focusing solely on the leukotriene pathway to reduce chronic airway inflammation.

The General Purpose of Arotel in Airway Management

The general purpose of Arotel is to provide sustained maintenance treatment, supporting stability in the respiratory system. It is utilized in scenarios requiring continuous management of airway inflammation, offering foundational support rather than immediate, crisis relief.

Montelukast works by blocking the activity of key inflammatory messengers known as cysteinyl leukotrienes, which are responsible for promoting swelling and muscle constriction. By consistently interrupting this specific biological pathway, Arotel offers ongoing, systemic support for prophylaxis and overall functional stability.

Physical Forms: Tablets and Granules

Arotel is prepared for systemic administration and is available in multiple oral solid dosage forms. These preparations include standard film-coated tablets, chewable tablets, and oral granules, allowing for flexible intake.

A strategic feature of these formulations is the variety of available forms, which ensures that the daily therapeutic requirement can be reliably met across all patient groups. The inclusion of chewable tablets and granules is particularly beneficial for ensuring ease of use and adherence in pediatric patients requiring long-term care.

Regulatory References

  1. Montelukast: MedlinePlus Drug Information
  2. FDA Drug Labeling for Montelukast

What side effects are possible with Arotel?

Arotel (Montelukast sodium) is associated with a range of possible adverse reactions as documented in official regulatory labeling, which are categorized by frequency and the body system affected.

Official Side Effect Classification

Adverse effects are documented across various System-Organ Classes (SOCs), including Gastrointestinal Disorders, Nervous System Disorders, and Psychiatric Disorders. The most frequently observed reactions include headache, gastrointestinal symptoms such as abdominal pain, diarrhea, and nausea, and upper respiratory infection.

Classification Examples (SmPC/FDA-documented)
Very Common Upper respiratory infection
Common Headache, abdominal pain, pyrexia, diarrhea
Uncommon Dizziness, insomnia, dry mouth, arthralgia, hypersensitivity reactions

Serious Adverse Reactions and Safety Constraints

The regulatory profile highlights risks of serious neuropsychiatric events, including agitation, aggression, dream abnormalities, and, rarely, suicidal thinking and behavior. This risk has led to a required Boxed Warning from the FDA for all montelukast products. These events may occur shortly after treatment initiation.

Rare, but serious, effects also include severe liver injury (such as cholestatic hepatitis) and severe cutaneous adverse reactions like Stevens-Johnson Syndrome (SJS). A rare systemic condition, sometimes consistent with Churg-Strauss Syndrome (CSS), has been observed, particularly in the context of reducing oral corticosteroid therapy.

Arotel is officially restricted to use as maintenance therapy for chronic conditions and must not be used for the immediate management of acute asthma attacks, a key safety constraint defined in its labeling. Specific regulatory caution is also noted for patients with severe hepatic impairment.

Overdose and Emergency Response

Overdose and When to Seek Help

The following information on overdose is derived exclusively from governmental regulatory documents concerning the active ingredient, Montelukast sodium.

Documented Overdose Presentations

Clinical and laboratory findings observed in acute overdose reports were generally consistent with the established safety profile of the medicine. No unique or severe adverse experiences were reported in the majority of documented cases.

Overdose presentations recorded in regulatory documents include:

  • Gastrointestinal Effects: Abdominal pain, vomiting.
  • Nervous System Effects: Somnolence (drowsiness), headache, psychomotor hyperactivity.
  • Other Manifestations: Thirst.

Overdose reports reviewed by regulators included both adult patients, with exposures as high as 1,000 mg, and pediatric patients, with findings remaining consistent across both populations.

Required Emergency Action

Immediate medical attention is required in the event of an acute overdose. Official guidance mandates contacting a regional Poison Control Centre or emergency services (e.g., 911) for professional instruction and evaluation.

Management procedures are defined as symptomatic and supportive treatment, necessary because regulatory information states that no specific antidote is known for Montelukast overdose. It has not been established whether the compound can be removed by peritoneal or hemodialysis procedures.

Therapeutic Uses of Arotel

Arotel is commonly used across three therapeutic domains, supporting patients in situations involving certain distressing symptoms. The medication is applied in addressing conditions associated with chronic asthma, allergic rhinitis (seasonal and perennial), and exercise-induced bronchoconstriction (EIB).

Regarding the use of montelukast sodium, the support provided assists with managing specific symptom clusters that may become intense or disruptive, such as recurrent wheezing, persistent coughing, nasal congestion, and sneezing.

The benefit of this medication is in providing supportive relief, contributing to easing the overall symptom load during periods of heightened discomfort. Arotel is applied in situations involving certain distressing symptoms, where it provides supportive relief when symptoms interfere with routine activities.

“The therapy is relevant for easing symptoms that may become intense or disruptive, supporting consistent management.”


Quick Fact: Relief for Congestion and Cough

Arotel is considered relevant for easing symptom clusters that include persistent coughing and nasal congestion. This provides supportive relief when symptoms interfere with routine activities.

Eligibility and Restrictions for Use

Arotel's eligibility profile is strictly defined by governmental regulatory documents based on patient status and specific condition.

Contraindications prohibit use in individuals with known hypersensitivity to Montelukast or any product component. The medicine is not indicated for the treatment of an acute asthma attack or as an abrupt replacement for oral or inhaled corticosteroids.

Age-Group Eligibility is established for adults and adolescents 15 years and older for all approved indications. The minimum age for chronic asthma treatment is 12 months; for perennial allergic rhinitis, 6 months; and for preventing exercise-induced bronchoconstriction, 6 years. Use is not established below these respective age thresholds.

Physiological Status restrictions are minimal: the medicine is permitted in patients with renal impairment or mild-to-moderate hepatic insufficiency without requiring dose modification. For Pregnancy and Lactation, official labeling advises caution, stating that use should be considered only if clearly essential.

Comorbidity-linked use includes a specific limitation: the chewable tablet formulation contains a source of phenylalanine and is restricted for use in patients with Phenylketonuria (PKU).

What should I know about interactions with other medicines?

Interactions with other medicines and products

Arotel (montelukast sodium) has documented interaction patterns primarily concerning its metabolic clearance pathways, which are governed by specific cytochrome P450 (CYP) enzymes, including CYP2C8, CYP2C9, and CYP3A4. These pharmacokinetic interactions modify the systemic exposure of Arotel when co-administered with certain other medicinal products.

Co-administration with the CYP enzyme inhibitor Gemfibrozil results in a significant increase, up to 4.4-fold, in Arotel's total exposure (AUC). Conversely, potent enzyme inducers like Phenobarbital are documented to decrease Arotel's systemic exposure by approximately 40%. Other inducers, such as Rifampicin, may similarly decrease plasma concentrations.

Other Documented Interactions

Interaction Type Interacting Substance Official Constraint/Finding
Required Avoidance Aspirin or NSAIDs Patients with known aspirin sensitivity must continue to avoid these agents, as Arotel does not negate the bronchoconstrictor response.
Food Interaction High-Fat Meal (Granules) Decreases the rate of absorption (Cmax by 35%) for the oral granule formulation, but does not affect the overall exposure (AUC).
Pharmacodynamic Note Oral/Inhaled Corticosteroids Arotel must not be abruptly substituted for these medications.
No Significant Interaction Theophylline, Warfarin Recommended doses showed no clinically important effects on the pharmacokinetics of these specific medicines.

Specific caution is noted for pediatric patients when co-administered with known CYP enzyme inducers.

Mechanism of Action

Molecular Mechanism: Selective CysLT1 Receptor Blockade

Arotel's active ingredient, Montelukast, functions as a competitive antagonist, engaging the Cysteinyl Leukotriene Receptor 1 ( CysLT1). Montelukast binds to this receptor, thereby blocking endogenous leukotriene mediators ( LTC4, LTD4, and LTE4) from attaching and activating their signaling cascade. This mechanism is defined by its high specificity, focusing exclusively on neutralizing the effects of this pathway.

Physiological Consequence: Airway Smooth Muscle and Edema Control

By interrupting CysLT1 signaling, the drug directly modulates subsequent physiological processes. This blockade helps maintain airway smooth muscle in a relaxed state, which contributes to the maintenance of the airway lumen diameter. Furthermore, the antagonism reduces the leukotriene-mediated increase in vascular permeability and dampens the chemotactic signals that drive inflammatory cell recruitment. This results in diminished tissue swelling (edema) and reduced chronic inflammatory cell accumulation within the airways.

Mechanistic Constraint: Pathway Specificity

This high specificity to the leukotriene pathway functionally constrains the mechanism. It is unable to engage the rapid signaling required to reverse acute bronchospasm, which is mediated by different, faster-acting pathways. The mechanism does not modulate other key inflammatory signals like prostaglandins or histamine.

Dosage and Administration Information

Official Administration Guidelines

Arotel (montelukast sodium) is a continuous, long-term oral treatment, and its use is strictly governed by a once-daily schedule. The appropriate dosage form and strength are selected based on the patient's age group, rather than body weight or symptom severity. Treatment is typically administered regardless of the timing of food ingestion.

Patient Age Group Labeled Daily Dose Formulation Type
15 years and older 10 mg Film-coated tablet
6 to 14 years 5 mg Chewable tablet
6 months to 5 years 4 mg Chewable tablet or oral granules

Timing and Special Instructions

For chronic management, the standard dose is typically instructed to be taken once daily in the evening. For other approved uses, the dose may be taken in the morning or evening. The regimen is intended for continuous, long-term use, and if a scheduled daily dose is missed, patients should take the next dose at the regular time and must not take two doses to compensate.

A different pattern applies for the prevention of exercise-induced bronchoconstriction (EIB), where a single dose is administered at least two hours before the planned activity. An additional EIB dose must not be taken within 24 hours of any previous dose.

Form and Population Rules

Specific formulations carry distinct administration rules: for instance, oral granules must be administered directly or mixed with a small amount of soft food or formula/breast milk, and must be consumed completely within fifteen minutes of preparation. No specific dose adjustment is needed for older adult patients or individuals with mild to moderate renal or hepatic impairment.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Arotel

Evidence for Use in Chronic Asthma Management

Research has examined patterns related to the long-term management of chronic asthma, which is a condition characterized by functional limitations and cycles of stability and flare-ups. The evidence was observed in primarily short-term and intermediate-term Randomized Controlled Trials (RCTs) involving adults, adolescents, and children. Researchers in these studies examined changes in objective measures like lung function, specifically the forced expiratory volume in one second (FEV1). They also monitored outcomes related to physical discomfort and functional imbalance, such as patient-reported symptoms during the day and night.

The findings describe patterns observed in the studies where measured lung function and symptom scores generally showed a measured difference when compared to observations in placebo groups. Comparative trials indicate that research has explored its use as an alternative. Comparative findings were mixed regarding maximum symptom control against other established options in specific patient groups.


Evidence for Preventing Exercise-Induced Bronchoconstriction (EIB)

The research examining patterns related to Exercise-Induced Bronchoconstriction (EIB) has primarily relied on controlled crossover studies. Researchers explored outcomes reflecting temporary physiological imbalance, specifically the percentage drop in air flow as measured by FEV1 after a controlled exercise challenge. The research describes changes measured during the study period, with data showing patterns related to attenuation of the measured response that is not consistent across all subjects.


Evidence for Use in Allergic Rhinitis

Arotel was evaluated in studies examining symptom changes related to allergic rhinitis, both seasonal and perennial. Researchers examined outcomes related to systemic or functional imbalance by measuring Total Nasal Symptom Scores (TNSS) and also applied in studies examining patient-reported experiences of how these symptoms affected daily functioning or activity level, such as sleep quality. Regulatory reviews note that Arotel's positioning appears to be in scenarios where individuals have insufficient response to or cannot tolerate other available standard treatments for allergic rhinitis.


What is Still Uncertain About Arotel Evidence

While numerous short-term trials exist, long-term effects are not fully established through extensive randomized comparisons. Comparative evidence is lacking in certain scenarios, and evidence quality varies across studies when comparing the medicine directly against all alternative standard controller therapies. Findings describe group patterns, not personal outcomes, and the individual response to the medication is not always fully predictable from the published research.

Frequently Asked Questions (FAQ)

Common questions about Arotel (FAQ)


Q: Is Arotel a controlled substance?

A: Arotel is a prescription-only medicine that requires a healthcare provider’s authorization. However, according to regulatory bodies, including the U.S. Drug Enforcement Administration (DEA), the active ingredient is not classified as a controlled substance.


Q: What are the most common things people misunderstand about Arotel?

A: Regulatory alerts emphasize the critical safety constraint that Arotel is only for maintenance therapy and is not to be used to treat sudden, acute asthma attacks. Official documents also highlight the importance of recognizing the potential for serious neuropsychiatric changes.


Q: Can Arotel cause weight gain, according to regulatory information?

A: Weight gain is not listed as a common or frequent adverse reaction in the official regulatory documents for Arotel. Weight gain was not reported as an established common or frequent side effect during initial clinical studies.


Q: How quickly does Arotel usually start to have an effect?

A: According to official product information, the active ingredient typically reaches its maximum concentration in the blood within 2 to 2.5 hours after being taken. However, Arotel is a continuous, long-term treatment intended to provide sustained control over chronic airway conditions. The medicine is for continuous, long-term treatment and is not intended for the relief of sudden, acute symptoms.


Q: Are there any major diet restrictions when using Arotel?

A: Official documents indicate that the 10 mg film-coated tablet can be taken without regard to food. For the chewable tablet and oral granule formulations, a standard or high-fat meal can affect the rate at which the medicine is absorbed, but it generally does not change the total amount of the medicine that enters the body.


Q: What makes Arotel different from other drugs for the same condition?

A: Arotel is classified as a Leukotriene Receptor Antagonist (LTRA). Studies show that it works by selectively blocking the action of inflammatory messengers called leukotrienes. This selective action on the leukotriene pathway distinguishes its mechanism from some other classes of respiratory medications.


Q: Does Arotel interact with common pain relievers like ibuprofen?

A: Official regulatory information indicates that no clinically important drug interaction has been found between Arotel and common, non-aspirin nonsteroidal anti-inflammatory drugs (NSAIDs) in the general patient population. Regulatory documents indicate that Arotel does not negate the bronchoconstrictor response to aspirin and other NSAIDs; therefore, patients with known aspirin sensitivity must continue to adhere to their existing avoidance protocols.


Q: Can taking Arotel affect my ability to drive?

A: Official safety information states that side effects such as dizziness and somnolence (sleepiness) have been reported. These effects may impact a patient's ability to drive or operate machinery, and official information notes that caution is advised.


Q: What happens if I stop taking Arotel suddenly?

A: Clinical studies of patients stopping Arotel for asthma did not report an immediate rebound or sudden worsening of the condition. However, post-marketing reports indicate that neuropsychiatric symptoms have persisted or occurred after discontinuation. Therefore, continued monitoring by a healthcare provider may be required.


Q: How is the safety of Arotel monitored after it is released to the public?

A: The safety of Arotel is continuously monitored through post-marketing surveillance. Regulatory agencies collect reports of adverse events (such as the FDA Adverse Event Reporting System) to identify potential issues, evaluate risks, and update warnings, including the required Boxed Warning.


Q: What is the average duration of action for Arotel?

A: According to pharmacokinetics data in the official product information, the mean plasma elimination half-life of Arotel's active ingredient in healthy young adults is approximately 2.7 to 5.5 hours.


Q: Can Arotel be used by people with a history of heart issues?

A: Official regulatory documents do not list cardiovascular issues as a direct contraindication for Arotel use. However, certain conditions associated with the drug or concomitant use of other medications are noted as precautions in the official labeling.


Q: Can I take Arotel if I also take a multivitamin?

A: Clinical interaction studies have not found a significant drug interaction between Arotel and common multivitamin or mineral supplements. It is standard practice to disclose all products, including supplements, to a healthcare provider.


Q: Do regulatory agencies classify Arotel as having a risk of dependence?

A: Arotel (Montelukast) is not classified as having a risk of dependence or abuse potential under the Controlled Substances Act or related international regulatory frameworks.


Q: What does the research say about the long-term use of Arotel?

A: Arotel is prescribed for continuous, chronic management, and clinical trials have examined its effects in the short and intermediate term. The official regulatory evidence notes that while it is used long-term, extensive randomized comparisons defining all aspects of very long-term effects are not fully established in the documentation.


Q: Why is Arotel sometimes prescribed alongside other medications?

A: Arotel is commonly used as a foundational or add-on therapy for maintenance management. Official documents state that it should not be abruptly substituted for inhaled or oral corticosteroids. Official guidance notes that patients with acute airway symptoms require appropriate rescue medication, as Arotel is not intended for immediate crisis relief.


Q: Is it normal to feel tired after starting Arotel?

A: According to the official regulatory labeling, fatigue (tiredness) or somnolence (sleepiness) is documented as an uncommon adverse reaction. Other effects related to the central nervous system, such as headache, dizziness, and insomnia, have also been reported in product information.


Q: How often do people experience the most serious side effects listed for Arotel?

A: The serious adverse reactions, such as the neuropsychiatric events that led to the Boxed Warning, are generally considered rare but potentially significant. Official labeling notes that because these events are identified through post-marketing surveillance reports, a precise quantification of risk is not available.


Q: Can Arotel be split or crushed?

A: Regulatory documentation specifies that film-coated tablets are intended to be swallowed whole. Chewable tablets and oral granules are available as alternative formulations. There is no official instruction given to split or crush the standard tablets.


Q: What ingredients are in Arotel besides the main active component?

A: The primary active ingredient is Montelukast sodium. Inactive ingredients vary depending on whether the product is a film-coated tablet, chewable tablet, or oral granule. Notably, the chewable tablets contain aspartame, which is a source of phenylalanine.


Q: Does Arotel affect birth control pills?

A: Clinical studies have not reported a clinically important interaction when Arotel (Montelukast) is co-administered with oral contraceptives.


Q: Can Arotel interfere with laboratory test results?

A: Regulatory guidance suggests that Arotel (Montelukast) does not typically interfere with common allergy tests, such as skin prick testing or blood tests for immunoglobulin E (IgE). Therefore, the medication can usually be continued while undergoing allergy testing.


Q: What type of doctor is most likely to prescribe Arotel?

A: Arotel is commonly prescribed by healthcare professionals who treat chronic airway and allergic conditions, such as pulmonologists (lung specialists), allergists, and primary care physicians.


Q: What should I do if I suspect an interaction between Arotel and another product?

A: Regulatory documents state that patients should be alert for any new or concerning symptoms or changes in behavior. It is important to inform a healthcare provider of all current medications, including non-prescription products.


Q: How does the official literature describe the benefits of Arotel?

A: The official regulatory literature and supporting studies describe the benefits in terms of improving objective measures of lung function, such as forced expiratory volume in one second (FEV1). Benefits are also described through improvements in patient-reported outcomes, including symptom scores for chronic asthma, exercise-induced bronchoconstriction (EIB), and allergic rhinitis.


Q: Can Arotel be used for conditions other than the main approved purpose?

A: Arotel is officially approved by regulatory agencies only for the prophylaxis and chronic treatment of asthma, acute prevention of exercise-induced bronchoconstriction (EIB), and the relief of symptoms of seasonal and perennial allergic rhinitis.


Q: Is the name Arotel pronounced 'A-ro-tel' or 'Ah-roh-tel'?

A: While pronunciation can vary, the active ingredient, montelukast, is generally pronounced mon-te-LOO-kast.


Q: Are there any known interactions between Arotel and herbal supplements?

A: Specific herbal products are not individually listed in the regulatory documents. However, Arotel is metabolized by certain CYP enzymes, so herbal supplements known to be strong inhibitors or inducers of these enzymes may potentially affect the medicine's systemic exposure.


Q: Is Arotel a generic drug or still under patent?

A: The original branded version has expired, and regulatory agencies have since approved multiple generic versions of Arotel's active ingredient, Montelukast sodium.


Q: Does Arotel require special monitoring or tests?

A: The FDA advises that patients or caregivers maintain alertness for any changes in behavior or new neuropsychiatric symptoms. Regular liver function tests are not routinely required for patients with mild to moderate liver impairment.


Q: What percentage of people report experiencing the main side effects of Arotel?

A: Official regulatory labeling does not provide exact percentages, but categorizes the frequency of side effects. For example, some side effects are categorized as Very Common (in 1 or more out of 10 people), while others are Common (in 1 or more out of 100 people but less than 1 out of 10).


Q: Is Arotel considered a widely studied drug?

A: Official regulatory documentation indicates that numerous clinical trials, including placebo-controlled and comparative studies, have been conducted to establish the efficacy and safety profile of Arotel in both adults and children across various approved indications.

How should Arotel be stored and disposed of?

Storage and Disposal Requirements

Storage Conditions

Arotel (montelukast sodium) must be stored at Controlled Room Temperature, specifically between 20 C and 25 C (68 F and 77 F), with protection from excessive heat. It is mandatory to store the medication in its original, closed container to protect it from moisture and light. As a critical safety measure, Arotel must always be stored out of the reach of children and pets.

Granules Stability

The oral granule packets must not be opened until they are ready for use. If the dose is mixed with food or liquid, it must be administered entirely within 15 minutes of opening the packet, and any unused portion must be discarded.

Disposal Instructions

Unused or expired Arotel should be disposed of through a drug take-back program. If a program is unavailable, mix the medicine with an undesirable substance (such as dirt) and place it in a sealed bag or container before discarding it in the household trash. Do not flush Arotel down the toilet.

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

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