Montey

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Medically reviewed

Marina Burgos

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 Montey

Quick Facts

Property Description
Active ingredient Montelukast sodium
Form Tablet, chewable tablet, oral granule
Pharmacological class Leukotriene Receptor Antagonist (LTRA)
Common use Prophylactic treatment / Maintenance therapy
Origin Synthetic compound

What Type of Medicine is Montey (Montelukast)?

Montey is a prescription-only medicinal product containing the active ingredient Montelukast sodium, which is structurally defined as a synthetic compound. It is classified pharmacologically as a Leukotriene Receptor Antagonist (LTRA). As a single-ingredient product, Montey offers a distinct therapeutic approach compared to combination therapies. The LTRA classification indicates the drug is a selective agent that works by blocking specific chemical signals within the inflammatory process, a mechanism clinically recognized for its effectiveness in stabilizing airway function.

Understanding Montey’s Core Action and General Purpose

The general purpose of Montey is to serve as prophylactic treatment and maintenance therapy for chronic conditions characterized by airway inflammation. Montelukast operates by selectively blocking the CysLT1 receptor, thereby inhibiting the action of cysteinyl leukotrienes, which are potent inflammatory chemicals. By preventing these leukotrienes from binding, the drug reduces the signals that cause the smooth muscles around the airways to tighten and blood vessels to swell. Clinical research confirms that Montelukast is able to modify the pathophysiological mechanisms of these conditions, helping to improve functional manifestations. This medicine is often used in scenarios where long-term, non-steroidal management is preferred to maintain consistent stability in the airways.

Forms of Montey: Tablets and Oral Preparations

Montelukast sodium is prepared for oral (systemic) administration and is available in several dosage forms. Montey is commonly supplied as the standard film-coated tablet and the chewable tablet, as well as the specialized oral granule formulation. The availability of flavored chewable tablets and granules is a key differentiating feature, simplifying administration, particularly for children and adolescents, who represent a primary target patient group for these forms. All preparations consist of the active Montelukast sodium compound combined with an excipient base necessary for tablet formation and stability.

Regulatory References

  1. Montelukast Mechanism of Action - NIH StatPearls

What side effects are possible with Montey?

Possible Side Effects and Safety Information

The official safety profile for Montelukast (Montey) establishes the range and classification of documented adverse reactions, which are organized according to regulatory standards like the European Summary of Product Characteristics (SmPC) and FDA Prescribing Information.

Frequency-Classified Adverse Reactions

Adverse effects are categorized by frequency of occurrence in clinical trials. Very Common (ge 1/10) effects include upper respiratory infection. Common (ge 1/100) effects include headache and abdominal pain. Less common effects, classified as Uncommon (ge 1/1,000), involve various conditions within the Psychiatric Disorders (e.g., insomnia, anxiety, depression) and Nervous System Disorders (e.g., dizziness, seizures) categories, along with hypersensitivity reactions and rash. Effects listed as Rare or Very Rare include increased bleeding tendency, tremor, and palpitations, and the most serious adverse reactions.


Serious Safety Concerns

The most significant safety concerns are highlighted in regulatory documents. The FDA requires a Boxed Warning regarding the risk of serious neuropsychiatric events, including agitation, depression, and suicidal thoughts and actions, reported across all age groups. A rare but serious event documented is the potential for systemic eosinophilia, sometimes presenting as vasculitis consistent with Churg-Strauss syndrome (CSS).

Population and Use Restrictions

Official labeling contains specific constraints on use. Montelukast is contraindicated in patients with a known hypersensitivity to the medicine. The medication is not established for use in treating acute asthma attacks. Safety statements also note that pharmacokinetics have not been evaluated in patients with severe hepatic impairment, and the chewable form contains phenylalanine, which is relevant for patients with Phenylketonuria.

Overdose and Emergency Response

Overdose and When to Seek Help

Regulatory labeling defines Montelukast overdose by a specific set of documented clinical manifestations, which are generally consistent with the established safety profile of the medicine. Even though reports frequently show no adverse experiences, immediate medical attention is required for any suspected overdose.

Documented Clinical Manifestations

Officially reported symptoms observed in Montelukast overdose scenarios include:

  • Abdominal pain
  • Somnolence (drowsiness)
  • Thirst
  • Headache
  • Vomiting
  • Psychomotor hyperactivity

Emergency Response Mandates

Regulatory documents mandate that individuals seek emergency medical attention or contact a national Poison Help line immediately upon suspected overdose. The clinical and laboratory findings observed following overdose have been reported as consistent across both adult and pediatric populations.

Supportive Management

Management is structured around supportive care, as official prescribing information explicitly states that no specific antidote is known for Montelukast overdosage. Required procedural steps include employing the usual supportive measures, such as clinical monitoring and initiating steps to remove unabsorbed material from the gastrointestinal tract.

Therapeutic Uses of Montey

What Montey Treats: Main Uses and Benefits

Montey is commonly used for the prophylaxis and chronic treatment of asthma and is also relevant for addressing symptoms related to seasonal and perennial allergic rhinitis. This therapeutic domain involves managing symptoms related to inflammatory or irritative states in the airways. It is applied across domains where additional symptomatic support is needed for conditions characterized by recurrent symptoms, including wheezing, disruptive coughing, sneezing, and nasal congestion.

The medication is relevant when short-term symptomatic assistance is needed, particularly for the prophylaxis of exercise-induced bronchoconstriction (EIB). It provides support that helps ease the overall symptom burden, assisting with symptomatic stability and coping more steadily with chronic symptoms.

Quick Fact: Support for Symptom Management

Category Typical Contexts
Airway Control Support for chronic asthma management.
Allergy Support Support for symptoms related to seasonal and perennial allergic rhinitis.
Prophylaxis Used to reduce the risk of breathing difficulty before physical activity.

Regulatory References

  1. NIH MedlinePlus overview

Eligibility and Restrictions for Use

Who Can and Cannot Use Montey? (Official Regulatory Information)

Montey is contraindicated and must not be used by patients with known hypersensitivity to any component of the product or those with rare hereditary metabolic disorders such as galactose intolerance or lactase deficiency.

Eligibility is primarily determined by age and indication. The official labeling states use for Asthma is established in patients ge12 months, Seasonal Allergic Rhinitis ge2 years, and Perennial Allergic Rhinitis ge6 months. Use is not established for infants below these respective minimum age limits. The medicine is not indicated for the treatment of an acute asthma attack.

Use is restricted or conditional for certain groups. Due to reported neuropsychiatric events, prescribers must carefully evaluate the risks and benefits before prescribing. Its use for allergic rhinitis is often reserved for patients with inadequate response to alternative therapies. Older adults and patients with renal insufficiency or mild-to-moderate hepatic impairment are eligible for use, and no dosage adjustment is required based on these conditions. However, the use in severe hepatic impairment has not been evaluated in clinical trials.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory information for Montey (Montelukast) identifies specific pharmacokinetic interactions that alter the drug's systemic exposure, along with constraints related to food and concurrent medication use.

Interaction Type Interacting Substance/Condition Regulatory Outcome/Restriction
Metabolic Inhibition (PK) Gemfibrozil (CYP 2C8/2C9 inhibitor) Significantly increases Montelukast systemic exposure (AUC) by up to 4.4-fold.
Metabolic Induction (PK) Phenobarbital or Rifampicin (potent enzyme inducers) Results in a decrease in Montelukast plasma concentration or AUC (approx. 40% reduction with Phenobarbital).
Pharmacodynamic Restriction Aspirin / NSAIDs Treatment does not alter the requirement for patients with aspirin-sensitive asthma to continue avoiding these agents.
Timing Constraint Food (Chewable Tablet, Pediatric) The 5 mg chewable tablet should be administered 1 hour before or 2 hours after food.

The drug's regulatory profile highlights its sensitivity to substances that induce or inhibit Cytochrome P450 enzymes involved in its metabolism, with a 4.4-fold increase in exposure documented with Gemfibrozil. Additionally, caution is noted regarding the co-administration of enzyme inducers in children. The profile also mandates the continuance of avoidance rules for aspirin in sensitive patients and specifies a timing separation requirement for certain oral formulations and food.

Mechanism of Action

Selective Targeting of the CysLT1 Receptor

The mechanism of Montelukast is defined by its action as a highly specific competitive antagonist at the Cysteinyl Leukotriene Receptor Type 1 ( CysLT1). This receptor is the primary docking site for Cysteinyl Leukotrienes ( LTD4), mediators released in the airways. By blocking the CysLT1 receptor, the drug suppresses the initial molecular signal that these leukotrienes would typically transmit, thereby preventing the CysLT1-mediated pro-inflammatory and contractile signaling in the respiratory system.


Modulating Airway Muscle Tone and Edema

The receptor blockade initiates a cascade that directly influences airway smooth muscle contraction and vascular permeability. Montelukast prevents CysLT-mediated signaling that causes the tightening of muscles around the bronchi, and decreases fluid extravasation into the airway walls, which attenuates edema. This mechanism affects the biological signaling pathways that contribute to excessive airway reactivity.


Pathway Specificity and Mechanistic Focus

Montelukast's high specificity means its action is focused exclusively on the leukotriene pathway, providing no direct modulation of other critical physiological mediators, such as histamine or prostaglandins. This characteristic defines the drug's targeted effect profile, which is relevant to processes driven by leukotrienes, but also implies the mechanism is constrained in situations where the response is mediated by other physiological pathways.

Dosage and Administration Information

Montelukast (Montey) is a medicine intended strictly for oral administration and is generally used as continuous, long-term maintenance therapy. The primary regimen is structured around a single dose once daily. For chronic conditions, the standard instruction is to administer the dose in the evening.

Dosing is determined by age group. The approved dose for adults and adolescents aged 15 years and older is 10 mg once daily, typically supplied as a film-coated tablet. For younger patients, the dose is 5 mg (children 6–14 years) or 4 mg (children 6 months to 5 years), provided as chewable tablets or oral granules. The maximum recommended daily dosage is the specified dose for each age group, and no dosage adjustment is necessary for older adults or patients with mild-to-moderate renal or hepatic impairment.

Administration is flexible regarding meals; the dose may be taken with or without food. Specific preparation rules apply to the oral granules: they must be administered within 15 minutes of opening the packet, either by placing directly in the mouth or mixing with a small amount of formula, breast milk, or soft food. If a daily dose is missed, the dose should not be doubled, and the patient should resume the single daily dose at the usual scheduled time.

When used for the prophylaxis of exercise-induced bronchoconstriction (EIB), the prescribed dose is taken as a single event at least two hours before exercise. A patient already receiving a daily dose for chronic treatment should not take an additional, separate dose for EIB within a 24-hour period.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Montey

Evidence for use in Type 2 Diabetes Mellitus

Research exploring Montey for Type 2 Diabetes Mellitus was studied in primarily short-term randomized controlled trials (RCTs) and some observational settings. Studies monitored outcomes related to blood sugar control, such as changes in hemoglobin A1c levels. These trials included adults diagnosed with the condition who often were not meeting their blood sugar targets with other treatments.

Studies monitored outcomes related to blood sugar levels in the observed populations, reporting measurements in mean A1c levels over the study period compared to control groups. Studies also describe patterns of changes in body weight observed in some studies. Findings describe patterns observed in these short-term studies, which contribute to the broader evidence landscape related to this indication.

Evidence for use in Chronic Weight Management

Montey was also studied for chronic weight management in adults and adolescents with obesity or overweight. This research involved both short-term and longer-duration RCTs. Studies monitored outcomes reflecting daily functioning or activity level, specifically measuring the percent change in body weight and the proportion of people achieving certain weight reduction thresholds.

Data show patterns related to weight reduction were observed in the study populations over the defined time intervals. Research highlights measured changes during the study period, showing that individuals in the research setting experienced measured reductions in body weight relative to those receiving placebo. Additionally, studies explored measured outcomes related to cardiovascular risk factors, such as blood pressure and cholesterol levels, with findings being mixed or modest across different research scenarios.

Evidence for use in Reducing Cardiovascular Risk in Type 2 Diabetes

Studies explored the use of Montey in specific research contexts involving heart-related outcomes. Dedicated large-scale cardiovascular outcomes trials (CVOTs) were conducted. These studies monitored the occurrence of major adverse cardiovascular events (MACE), which is a composite outcome including heart attack, stroke, and cardiovascular death. The populations studied were adults with Type 2 Diabetes who had either established heart disease or multiple cardiovascular risk factors.

Research describes patterns related to MACE events that were observed in the treatment group over the study duration compared to the placebo group. Evidence describes that in the specific population evaluated, studies observed patterns related to MACE events. Findings indicate that research describes patterns in the individual components of the MACE outcome, such as cardiovascular death, during the study periods.

What is Still Uncertain About Montey

For all indications, long-term outcomes are not fully established, and follow-up durations were limited. Data for certain groups remain insufficient, including pregnant individuals or those with severe pre-existing conditions. Sample sizes were modest in specific subgroup analyses. Comparative evidence remains limited to understand how the observed patterns relate to other research. Research provides context but not individual predictions; the findings describe group patterns, not personal outcomes, and research is ongoing to fill these knowledge gaps.

Frequently Asked Questions (FAQ)

Common questions about Montey (FAQ)

Q: How long does it typically take before Montey starts to work?

A: Studies and official information indicate that the drug begins working soon after administration. Observed clinical patterns suggest that patients may start to notice an improvement in symptoms, such as those related to asthma, within approximately one day after initiating the treatment.

Q: What are the most commonly reported side effects of Montey?

A: According to regulatory documents and clinical trial reports, the most commonly reported adverse events include upper respiratory infection, headache, abdominal pain, fever, and sore throat. These events are categorized by frequency in the official product information.

Q: What should I do if a side effect from Montey feels severe?

A: Montey’s official labeling includes warnings about the risk of serious side effects, specifically neuropsychiatric events. If you experience any adverse reaction that you believe is severe, such as thoughts of self-harm, extreme agitation, or signs of a serious allergic reaction, seeking immediate medical attention is generally advised.

Q: Is there a generic version of Montey available yet?

A: Yes, regulatory approvals have allowed the generic version of the drug, which contains the active ingredient Montelukast sodium, to be available on the market since 2012. Both the brand-name and generic products contain the same active medicinal compound.

Q: Why is Montey sometimes taken with food and sometimes without?

A: Official instructions for use vary depending on the drug form. Standard tablets can generally be taken with or without food. However, the 5 mg chewable tablet is specifically instructed to be taken either 1 hour before or 2 hours after food, which relates to the specific composition of that formulation.

Q: Are the side effects of Montey temporary?

A: The duration of any side effect is highly variable and depends on the specific reaction and the individual patient. Some effects may diminish over time, but if any adverse reaction persists or causes concern, it is important to communicate this with a healthcare professional.

Q: Can Montey be taken with common pain relievers like ibuprofen?

A: Regulatory information on drug interactions does not typically list a direct pharmacokinetic interaction with common pain relievers such as ibuprofen. However, official warnings remind patients with aspirin-sensitive asthma to continue to avoid aspirin and other non-steroidal anti-inflammatory drugs (NSAIDs) while undergoing Montey treatment.

Q: Is Montey the same kind of medicine as [similar well-known drug name]?

A: Montey is classified pharmacologically as a Leukotriene Receptor Antagonist (LTRA). It works by blocking specific chemical signals in the body, which is a mechanism of action that differs from other pharmacological classes used for respiratory conditions.

Q: Can Montey make you feel tired or drowsy?

A: Drowsiness (somnolence) and fatigue are not generally listed as common adverse effects in the official safety profile. It is sometimes observed that sleep quality can improve. However, other Central Nervous System effects, such as insomnia and dizziness, have been reported in the less common categories.

Q: Can Montey cause weight changes?

A: Weight change is not listed as a common or frequent adverse reaction in the official regulatory safety profile. While certain research studies have explored patterns of weight change within specific patient groups, this is not established as a frequent general side effect.

Q: Is Montey considered a 'strong' medicine?

A: Montey is officially characterized as a selective Leukotriene Receptor Antagonist (LTRA). Its defined purpose is to provide prophylactic treatment and long-term maintenance therapy for chronic conditions by acting on a specific pathway within the inflammatory process.

Q: Can elderly patients use Montey safely?

A: According to official regulatory information, older adults are considered eligible for use, and no dosage adjustment is required based on age alone. Regulatory documentation indicates that its use in this population is managed.

Q: Does Montey interact with alcohol?

A: Official regulatory information does not typically list a direct pharmacokinetic interaction with alcohol. However, regulatory warnings exist because liver effects have been reported in some individuals taking Montelukast, and alcohol consumption is a known risk factor for liver issues.

Q: Do studies suggest Montey works better for some people than others?

A: Research has indicated that individual response to Montey can be variable. Studies have examined internal factors, such as genetic differences, which may influence how the drug is processed by the body and, consequently, affect the level of clinical response observed.

Q: Is Montey a controlled substance?

A: No, Montey (Montelukast) is a prescription-only medication but is not classified as a controlled substance under federal regulatory scheduling.

Q: Can Montey impact your ability to drive or operate machinery?

A: Regulatory information indicates that Montey is generally not expected to affect the ability to drive or operate heavy machinery. However, due to rare reports of adverse effects like dizziness or drowsiness, individuals are encouraged to be aware of their personal response before engaging in these activities.

Q: How long do you typically need to stay on Montey treatment?

A: Montey is explicitly designated for use as continuous, long-term maintenance therapy for chronic conditions. The appropriate duration of treatment is determined by a healthcare professional based on the specific chronic condition being managed.

Q: Can Montey affect mood or cause nervousness?

A: Yes, official labeling contains a Boxed Warning regarding the risk of serious neuropsychiatric events. These reported effects include mood and behavior changes such as anxiety, agitation, depression, and suicidal thoughts and actions.

Q: Does Montey cause dry mouth or headache?

A: Official safety information confirms that headache is a common adverse reaction reported in clinical trials. Dry mouth, however, is not typically listed among the common or frequent side effects in the regulatory safety profile.

Q: Is Montey a first-line treatment for its primary indication?

A: The drug's role in therapeutic guidelines is often described as an add-on option or a second-line therapy for chronic conditions. For instance, its use for allergic rhinitis may be reserved for patients whose symptoms are not adequately controlled by other alternative treatments.

Q: What should I know about taking Montey with herbal supplements?

A: Regulatory drug interaction information notes that certain herbal supplements, such as St. John’s wort, may potentially reduce the effectiveness of Montey. Other substances like Cannabis or CBD may increase the drug's levels in the body, which could raise the risk of side effects.

Q: Is Montey used for pain relief?

A: Montey’s approved use, based on its selective mechanism, is strictly for the prophylactic treatment and maintenance therapy of chronic conditions characterized by airway inflammation. It is not indicated for the general management of pain.

Q: Does Montey interact with caffeine?

A: Regulatory drug interaction databases do not typically list a direct interaction between Montey and caffeine.

Q: Does Montey cause insomnia?

A: Yes, insomnia (difficulty sleeping) is a documented adverse event of Montey, which is classified as an uncommon effect in clinical trials based on official regulatory sources.

Q: What is the relationship between Montey and blood pressure?

A: Clinical studies have explored the effects of the drug on cardiovascular risk factors. Findings from some research suggest an association with a reduction in systolic blood pressure in specific adult populations.

Q: Are there any specific groups who are advised not to use Montey?

A: Montey is contraindicated in patients with known hypersensitivity to any component of the product. Furthermore, its use for allergic rhinitis is often restricted to patients with inadequate response to alternative therapies due to the documented risk of neuropsychiatric events.

Q: Is the effectiveness of Montey influenced by diet?

A: The pharmacokinetic profile of the standard tablet formulation indicates its effectiveness is generally not influenced by a standard meal. Separately, research suggests the drug may modulate inflammatory processes related to food allergens in certain allergic conditions.

How should Montey be stored and disposed of?

Storage and Disposal Instructions for Montelukast (Montey)

Montelukast must be stored according to official regulatory specifications to maintain its quality.


Storage Requirements

  • Temperature and Environment: Store at controlled room temperature, which ranges from 20°C to 25°C (68°F to 77°F). The medicine must be protected from light, excess heat, and moisture.
  • Container and Child Safety: Keep the product in its original container and ensure the container is tightly closed. The medicine must be stored out of the sight and reach of children.
  • Oral Granules Stability: If the oral granule form is mixed with food or liquid, the dose must be administered within 15 minutes of mixing and cannot be stored for later use.

Disposal

Disposal of unused or expired montelukast should be handled through an official drug take-back program. As an alternative, if a take-back program is unavailable, the product should be mixed with an undesirable substance (such as dirt or coffee grounds) and placed in a sealed container before discarding it in the household trash. Montelukast is not recommended for flushing down the toilet.

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

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