Lasma

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Medically reviewed

Laura Arias

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 Lasma

What is Lasma?

Lasma is a combination medication typically prescribed for the management of chronic respiratory conditions. It contains two active ingredients: montelukast and levocetirizine. Each component works through a different mechanism to address the underlying causes of respiratory distress and allergic responses.

Composition and Mechanism of Action

  • Montelukast: This component is a leukotriene receptor antagonist. Leukotrienes are chemicals the body releases when breathing in an allergen. These chemicals cause swelling in the lungs and tightening of the muscles around the airways, which can result in asthma symptoms. Montelukast works by blocking these receptors to help keep the airways open.
  • Levocetirizine: This is a third-generation antihistamine. It works by blocking the effects of histamine, a natural substance in the body that causes allergic symptoms such as sneezing, itching, watery eyes, and runny nose.

Clinical Intent

The primary purpose of this combination therapy is to provide a dual approach to airway management. By targeting both the leukotriene pathway and the histamine response, Lasma is used to reduce inflammation in the respiratory tract and alleviate systemic allergic symptoms. It is most commonly used for individuals who experience both seasonal allergic rhinitis and persistent asthma, or for those whose symptoms are not sufficiently managed by a single-ingredient medication alone.

What side effects are possible with Lasma?

Possible Side Effects and Safety Information

The safety profile for Lasma (Choline Theophyllinate), a xanthine derivative, is closely related to the characteristics officially documented by regulatory agencies for its parent compound, Theophylline.

Adverse reactions are primarily documented by the organ system affected:

System-Organ Class (SOC) Documented Adverse Reactions (Examples)
Gastrointestinal Nausea, Vomiting, Diarrhea, Abdominal cramps
Nervous System Headache, Dizziness, Insomnia, Irritability, Trembling
Cardiac Tachycardia (rapid heart rate), Palpitations, Ventricular arrhythmia

Less serious effects, such as Nausea and Restlessness, may occur frequently and transiently when starting therapy. The overall risk of adverse events increases with higher concentrations in the body, with effects generally becoming more severe.


Serious Adverse Reactions and Safety Constraints

Official labeling documents explicitly identify the potential for serious adverse reactions, which may be the first indication of drug toxicity:

  • Convulsions (Seizures)
  • Ventricular Arrhythmias
  • Peripheral Vascular Collapse

The use of this medication is contraindicated (should not be used) in individuals with a history of Hypersensitivity to xanthine derivatives or those with Active Peptic Ulcer Disease.

Population-Specific Safety Notes

Specific regulatory warnings exist for certain populations due to documented changes in how the drug is cleared from the body, increasing the risk of toxicity:

  • Children: Use is not recommended for children under 10 years of age in some formulations due to increased sensitivity to xanthines.
  • Older Adults and Impairment: Caution is noted for patients over 55 years of age and those with Impaired Hepatic (Liver) Function or Cardiac Failure, as the drug’s clearance may be reduced.

The safety information structures the official understanding of the medicine's risks by clearly delineating which body systems are affected, identifying critical risks, and imposing specific limitations based on age and pre-existing conditions.

Overdose and Emergency Response

The official overdose profile for Lasma (Choline Theophyllinate) is defined by signs of severe systemic overstimulation, which is classified by regulatory authorities as a potentially life-threatening acute ingestion.

Documented Overdose Presentations and Severity

Overdose manifestations often begin with pronounced gastrointestinal upset, including severe nausea, vomiting, and abdominal pain, alongside signs of central nervous system and cardiac stimulation such as tremor, restlessness, and sinus tachycardia. Severe toxicity escalates to major neurological and cardiovascular events, including seizures and life-threatening ventricular arrhythmias, which may lead to cardiac arrest. Significant metabolic derangements, such as severe hypokalemia and metabolic acidosis, are also officially documented complications.

When to Seek Immediate Medical Help

Immediate medical attention must be sought when an overdose is suspected or when any severe manifestation occurs. Due to the narrow therapeutic window and the risk of severe cardioneurotoxicity, official regulatory guidance mandates management in a facility capable of intensive supportive care and enhanced elimination procedures. Toxicity from sustained-release formulations may be considerably delayed, necessitating extended observation.

Supportive Regulatory Measures

No specific antidote is known for this toxicity. Management is focused on supportive measures, including administering activated charcoal and treating complications. Haemodialysis is listed in regulatory-aligned guidelines as a definitive procedure for enhanced drug elimination in cases of high serum concentrations or refractory severe symptoms. Regulatory documents note that patients at the extremes of age or those with hepatic impairment are at increased risk of toxicity even at lower concentrations.

Therapeutic Uses of Lasma

What Lasma Treats: Main Uses and Benefits

Lasma is relevant for use in the management of sustained support for chronic airway diseases. It is commonly applied for the long-term management of conditions like Asthma and Chronic Obstructive Pulmonary Disease (COPD), including the components of Chronic Bronchitis and Emphysema. This foundational therapeutic approach is relevant in conditions characterized by persistent restriction of the bronchial passages.

Relief from Persistent Breathing Difficulties

The medication is commonly used to ease symptom clusters that interfere with daily functioning, specifically addressing the persistent discomfort of wheezing, chest tightness, and shortness of breath. Through its therapeutic focus on the airways, Lasma may assist in maintaining functional stability. This sustained action provides supportive relief that helps patients cope more steadily with these difficult symptomatic manifestations.

Foundation for Long-term Symptom Control

It is primarily used as a prophylactic and maintenance treatment for stable, chronic conditions. Its use may contribute to managing the frequency and intensity of recurring breathing episodes, supporting general well-being and helping maintain a sense of stability in chronic disease management.


“This therapeutic approach is relevant for offering ongoing support that may help maintain stability and ease the overall symptom burden associated with chronic lung issues.”

Therapeutic Context: Managing Persistent Breathing Difficulties Lasma is commonly used as a maintenance therapy to ease the discomfort and strain of recurrent wheezing, chest tightness, and shortness of breath associated with chronic airway restriction.

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

Who Can and Cannot Use Lasma?

Official regulatory documents strictly define the populations eligible to use Lasma (Choline Theophyllinate), based on absolute prohibitions and conditions that necessitate caution or restriction.

Absolute Contraindications

Lasma is officially contraindicated and must not be used in individuals with a known hypersensitivity to any xanthine derivatives or in patients with acute cardiac conditions, such as Acute Myocardial Infarction or severe Coronary Artery Disease.

Restricted and Conditional Use

Use is restricted in several populations due to the drug’s clearance profile. Patients with severe Liver Disease (e.g., cirrhosis) or Congestive Heart Failure require extreme caution, as official labels document significantly decreased drug clearance. Caution is also necessary for patients with a history of Seizure Disorders or Active Peptic Ulcer Disease, as the drug may exacerbate these pre-existing conditions.

Age and Reproductive Status

The medicine is approved for use in adults and children, but official labeling requires caution for older adults (over 60 years) and infants (under one year) due to documented changes in drug metabolism. For pregnancy, the drug is classified as Category C, restricting use to situations where the maternal benefit outweighs the potential risk. The medication is also documented to be excreted into breast milk.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official government regulatory documents classify interactions with Lasma based on their potential to significantly alter the drug's exposure or effect.

Classification
Exposure-Modifying Medicinal Products (PK)
Effect-Modifying Medicinal Products (PD)
Non-Medicinal Interactions
Administration Constraints

Exposure-Modifying Medicinal Products (PK): Concomitant use with strong inhibitors of the cytochrome P450 (CYP) enzyme systems—such as rifampicin and phenytoin—is documented to significantly alter the plasma concentrations of Lasma, necessitating close monitoring. The regulatory labeling explicitly identifies substances that inhibit or induce the metabolism of Lasma, leading to increased or decreased systemic exposure, respectively. For instance, gemfibrozil is specifically listed as a substance that may increase Lasma levels.

Effect-Modifying Medicinal Products (PD): The official profile notes potential for additive effects when Lasma is co-administered with certain other drugs, especially those affecting similar biological pathways. Specific requirements related to timing and separation of administration are documented for certain agents to manage interaction risks.

Non-Medicinal Interactions: Interaction information extends to non-prescription substances. Official documents advise on the need to avoid or monitor the intake of certain herbal products or specific foods that are known to interfere with the drug’s metabolism or absorption, as these can affect Lasma’s overall concentration in the body.

The regulatory interaction structure strictly defines these combinations to ensure the therapeutic activity of Lasma is maintained and to mitigate risks associated with altered drug levels.

Mechanism of Action

The physiological actions of Lasma (Choline Theophyllinate) are executed through multiple distinct molecular pathways within the respiratory system and central nervous system. The active component, Theophylline, engages mechanisms that modulate smooth muscle contractility, inflammatory signaling, and central respiratory drive.

Enzyme Inhibition and Smooth Muscle Relaxation

This core mechanism involves the inhibition of Phosphodiesterase (PDE) enzymes ( PDE3 and PDE4), leading to an increase in intracellular signaling molecules like cAMP. The resulting cascade reduces internal calcium levels in bronchial smooth muscle, resulting in a reduction of bronchial smooth muscle tone. This action also extends to modulating the contractility of the diaphragm.

Adenosine Receptor Antagonism and Drive Modulation

The drug acts as an antagonist to Adenosine Receptors ( A1, A2A, A2B), blocking the action of adenosine on its receptors and reducing the release of pro-constrictive mediators. In the central pathways, this receptor antagonism serves to stimulate the medullary respiratory center.

Regulation of Inflammatory Gene Expression

A separate mechanism involves the indirect activation of the nuclear enzyme Histone Deacetylase 2 ( HDAC2) by suppressing the PI3K- delta pathway. This HDAC2 restoration enables the enzyme to switch off the transcription of genes that produce pro-inflammatory mediators, thereby suppressing pro-inflammatory cytokine and mediator synthesis in the respiratory system.

Dosage and Administration Information

How to Use Lasma: Administration Guidelines

This section outlines the usage instructions for Lasma (Montelukast), focusing on the procedural requirements for proper administration.

Administration Scope

The approved route of administration for all dosage forms of Lasma is oral. For maintenance treatment, the dose is generally taken once daily in the evening.

Age Group Standard Daily Dose Dosing Form Availability
Adults (15 years and older) 10 mg Film-coated tablets
Pediatric (6 to 14 years) 5 mg Chewable tablets
Pediatric (2 to 5 years) 4 mg Chewable tablets or Oral granules
Pediatric (6 to 23 months) 4 mg Oral granules

Specific Administration Instructions

Timing and Meals: Lasma can generally be taken with or without food. For maintenance therapy, the dose is typically taken in the evening.

For Exercise-Induced Bronchoconstriction (EIB) Prevention: A single dose is taken at least 2 hours before exercise. Patients taking a daily maintenance dose should not take an additional dose for EIB, and no more than one dose for EIB should be taken in a 24-hour period.

Preparation Requirements (Oral Granules): The contents of the oral granule packet must be administered within 15 minutes of opening. Granules can be poured directly into the mouth or mixed with a spoonful of cold or room temperature soft food (such as applesauce, rice, or breast milk/formula). The prepared mixture must be consumed immediately and not stored for later use.

Missed Dose: If a dose is missed, take the next dose at the regular scheduled time. Do not take two doses at the same time.

Recent Clinical Evidence

Research evidence / Overview of Studies for Lasma

The research on Lasma (Choline Theophyllinate) comes from various scientific sources including randomized controlled trials (RCTs), systematic reviews, and long-term observational cohort studies. The evidence was evaluated for its role as a maintenance therapy for chronic conditions characterized by functional limitations in breathing. Findings describe group patterns and contribute to the broader evidence landscape, but research does not determine whether an individual will respond similarly.


Evidence for Use in Chronic Obstructive Pulmonary Disease (COPD)

Research has widely examined the use of this drug in adults with stable, moderate-to-severe COPD. Studies focused on changes measured during the study period, applied in studies examining patient-reported experiences. RCTs explored physiological responses, focusing on functional measures such as the Forced Expiratory Volume in 1 second (FEV1). Studies consistently reported patterns of change in these primary lung function markers when compared to a placebo. Research also explored outcomes related to episodic or acute changes, such as the rate of disease exacerbations. Findings for these long-term outcomes were mixed, with some trials monitoring patterns where exacerbation rates did not change when the drug was added to standard inhaled treatments.

Evidence for Use in Chronic Asthma Management

The drug was also evaluated in patients with chronic asthma, particularly those experiencing fluctuating manifestations. Short-term to intermediate-term studies explored outcomes related to overnight constriction of the airways. Findings describe patterns observed where symptoms evolved in the observed populations as reported by patients. However, studies also reported patterns where objective sleep quality was observed alongside measures of wakefulness and drowsiness, indicating potential changes in sleep architecture.


Key Limitations, Gaps, and Uncertainties in the Research Record

The evidence base highlights several limitations that restrict the certainty of findings. Much foundational evidence precedes the widespread adoption of newer, standard-of-care inhaled maintenance medications, which means its current comparative evidence is not fully established by older trials. Furthermore, the long-term impact on outcomes like all-cause mortality has not been sufficiently evaluated, and data for certain groups, such as those with severe disease, remain insufficient in randomized settings.

Frequently Asked Questions (FAQ)

Common questions about Lasma (FAQ)


Q: What happens if I forget to take a dose of Lasma?

According to the official instructions in the administration guidelines, the procedure for a missed dose describes taking the next scheduled dose at the regular time. It is important to avoid taking two doses at once to compensate for the missed one.


Q: Does Lasma interact with blood thinners?

Official regulatory documents classify drug interactions that can change Lasma's concentration or effect in the body. Regulatory labeling indicates that when Lasma is taken alongside blood thinners, the combination may necessitate close monitoring.


Q: Does Lasma interact with common medications for heartburn or acid reflux?

Official documents describe that Lasma’s systemic exposure, or the amount of drug in the body, may be affected by certain medications used for heartburn or acid reflux. The potential for altered Lasma levels means the combination may require monitoring, as outlined in the official documentation.


Q: Does Lasma interact with birth control pills?

Regulatory information states that certain components found in oral birth control pills can increase the concentration of Lasma in the body. The potential for increased Lasma concentration means that the combination may require blood level monitoring.


Q: What common supplements or vitamins are known to interact with Lasma?

Official interaction documents describe the need to monitor or avoid the intake of certain herbal products or specific foods. This is because they are known to interfere with how the drug is processed by the body.


Q: Can Lasma affect blood pressure readings?

Official safety information includes documented cardiac effects such as rapid heart rate (tachycardia) and palpitations. These effects, as described in regulatory documents, can sometimes be related to changes in blood pressure.


Q: How long does the effect of a single dose of Lasma typically last?

The half-life of Lasma’s active component, which describes the time it takes for half of the dose to be cleared from the body, typically ranges from 3 to 12.8 hours in healthy, non-smoking adults. The half-life data is referenced in regulatory documents to characterize the drug’s behavior for maintenance therapy.


Q: Does Lasma interact with antidepressant medications?

Official interaction documents note that certain antidepressant medications may interact with Lasma. This interaction can alter the drug's concentration or effect in the body and may require monitoring according to official guidelines.


Q: How quickly can someone expect Lasma to start working?

Lasma is indicated for ongoing maintenance therapy, not fast-acting, immediate symptom relief. The active component is rapidly absorbed, reaching peak concentration in the blood within approximately 1 to 2 hours following a dose of an immediate-release form.


Q: What is the difference between Lasma and other medicines for similar conditions?

Lasma is classified as a xanthine derivative and bronchodilator. This distinguishes it from other types of respiratory medicines based on its specific pharmacological class and its core mechanisms of action on the airways.


Q: Does Lasma cause drowsiness or affect alertness?

Official safety information for Lasma's active component includes central nervous system (CNS) effects. Documented side effects include dizziness and drowsiness, as well as stimulating effects like insomnia and irritability.


Q: Is Lasma suitable for long-term use?

Regulatory documents indicate that Lasma is officially intended as a maintenance therapy. The drug is indicated for chronic lung conditions, which supports its long-term use as a maintenance therapy.


Q: Is Lasma considered a controlled substance?

Lasma, which contains Choline Theophyllinate, is not classified as a controlled substance by official government agencies responsible for drug scheduling.


Q: What should be done if someone experiences a severe allergic reaction to Lasma?

A severe allergic reaction is documented as a medical emergency. If signs of a severe allergic reaction (hypersensitivity) occur, immediate emergency medical attention should be sought.


Q: Is it true that Lasma can cause dry mouth?

While dry mouth is not always listed as a common adverse reaction, official safety information documents note that dry mouth has been observed in the context of certain concentrations of the drug's active component.


Q: Is Lasma used for immediate relief or for ongoing management?

Lasma is indicated for ongoing maintenance therapy and is not intended to be used as a fast-acting, immediate-relief medicine for sudden breathing problems or attacks.


Q: Is Lasma recommended for older adults?

Official warnings indicate that caution is advised for older adults, particularly those over 55 or 60. This is due to documented changes in how the drug is processed in this population.


Q: Can Lasma be used during pregnancy, or are there limitations?

Lasma is classified in Pregnancy Category C by the FDA. This classification means official use during pregnancy is restricted to situations where the documented potential maternal benefit outweighs the potential risk to the fetus.


Q: Is there any information about Lasma use during breastfeeding?

Official regulatory documentation confirms that the active component of Lasma is excreted into breast milk. Its presence in breast milk may be associated with mild toxicities, such as irritability, in nursing infants.


Q: Where can I find the official patient information leaflet for Lasma?

The official patient information leaflet or prescribing information for Lasma can be accessed by searching the government databases of drug information. These include resources like NIH DailyMed or the European Medicines Agency (EMA) websites.


Q: Is Lasma approved in countries outside of the US?

The active ingredient in Lasma is documented in international pharmacopeias and has been evaluated by regulatory bodies in multiple countries. This regulatory review supports its availability and use outside of the United States.


Q: What is the role of Lasma in the overall treatment plan for the condition it treats?

Lasma is officially indicated to be used as a maintenance treatment. This means its role is to support sustained airway function as part of a long-term management plan, often used alongside other standard treatments.


Q: Are children eligible to use Lasma?

Official documents state that Lasma is approved for use in certain pediatric age groups, and dosing tables provide administration details for children. However, safety information also includes specific cautions regarding its use in children under 10 years of age for certain formulations.

How should Lasma be stored and disposed of?

The storage and disposal of Lasma (Choline Theophyllinate) must strictly adhere to official regulatory requirements to maintain product stability and safety. The medication requires storage at controlled room temperature, specifically between 15 C and 30 C (59 F and 86 F). The product must not be stored above 30 C and must be protected from both excessive heat and moisture. The official labeling requires that Lasma be kept in its original container, which must be tightly closed. For safety, a mandatory requirement is to store the medicine out of the sight and reach of children. Disposal of any unused or expired product must be executed in accordance with local requirements for pharmaceutical waste and should not be discarded via household trash or wastewater systems.

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

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