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MONTELUKAST PENSA 4 mg CHEWABLE TABLETS

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About the medicine

How to use MONTELUKAST PENSA 4 mg CHEWABLE TABLETS

Translated with AI

This page provides general information and does not replace a doctor’s consultation. Always consult a doctor before taking any medication. Seek urgent medical care if symptoms are severe.

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Introduction

Leaflet: information for the user

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Montelukast Pensa 4 mg chewable tablets EFG

Read the entire leaflet carefully before your child starts taking this medication, as it contains important information.

  • Keep this leaflet, as you may need to read it again.
  • If you have any questions, consult your child's doctor or pharmacist.
  • This medication has been prescribed to your child only, and you should not give it to others, even if they have the same symptoms as your child, as it may harm them.
  • If your child experiences side effects, consult your child's doctor or pharmacist. Even if they are side effects not listed in this leaflet. See section 4.

Contents of the leaflet:

  1. What is Montelukast Pensa and what is it used for
  2. What you need to know before your child starts taking Montelukast Pensa
  3. How to take Montelukast Pensa
  4. Possible side effects
  5. Storage of Montelukast Pensa
  6. Package contents and additional information

1. What is Montelukast Pensa and what is it used for

Montelukast Pensa is a leukotriene receptor antagonist that blocks substances called leukotrienes. Leukotrienes cause narrowing and swelling of the airways in the lungs. By blocking leukotrienes, Montelukast Pensa improves asthma symptoms and helps control asthma.

Your child's doctor has prescribed Montelukast Pensa to treat your child's asthma and prevent asthma symptoms during the day and night.

  • Montelukast Pensa is used for treatment in patients between 2 and 5 years of age who are not adequately controlled with their medication and need additional treatment.
  • Montelukast Pensa is also used as an alternative treatment to inhaled corticosteroids in patients between 2 and 5 years of age who have not recently taken oral corticosteroids for the treatment of their asthma and have shown that they are unable to use inhaled corticosteroids.
  • Montelukast Pensa also helps prevent exercise-induced narrowing of the airways in patients 2 years of age and older.

Depending on your child's symptoms and the severity of their asthma, your child's doctor will determine how to use Montelukast Pensa.

What is asthma?

Asthma is a chronic disease.

Asthma includes:

  • Difficulty breathing due to narrowing of the airways. This narrowing of the airways worsens and improves in response to various diseases.
  • Airways that are sensitive and react to many things, such as cigarette smoke, pollen, cold air, or exercise.
  • Swelling (inflammation) of the inner layer of the airways.

Asthma symptoms include: Coughing, wheezing, and chest congestion.

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2. What you need to know before your child starts taking Montelukast Pensa

Do not use Montelukast Pensa:

Warnings and precautions

Consult your child's doctor or pharmacist before starting to use montelukast.

  • If your child's asthma or breathing worsens, inform your child's doctor immediately.
  • Montelukast Pensa is not indicated for the treatment of acute asthma attacks. If an attack occurs, follow the instructions given by your child's doctor. Always have your child's rescue inhaler medication for asthma attacks.
  • It is essential that your child uses all asthma medications prescribed by the doctor. Montelukast Pensa should not replace other asthma medications prescribed by the doctor for your child.
  • Any patient being treated with asthma medications should be aware that if your child develops a combination of symptoms such as flu-like illness, tingling or numbness of arms or legs, worsening of lung symptoms, and/or skin rash, they should consult your child's doctor.
  • Your child should not take acetylsalicylic acid (aspirin) or anti-inflammatory medications (also known as non-steroidal anti-inflammatory drugs or NSAIDs) if they worsen your child's asthma.
  • Patients should be aware that several neuropsychiatric events have been reported with Montelukast Pensa (e.g., changes in behavior and mood-related events) in adults, adolescents, and children (see section 4). If you develop these symptoms while taking Montelukast Pensa, you should consult your doctor.

Children

For children between 2 and 5 years of age, Montelukast Pensa 4 mg chewable tablets are available.

For children between 6 and 14 years of age, Montelukast Pensa 5 mg chewable tablets are available.

Taking Montelukast Pensa with other medications

Inform your child's doctor or pharmacist if your child is taking, has recently taken, or may need to take any other medication.

Some medications may affect the functioning of Montelukast Pensa, or Montelukast Pensa may affect the functioning of other medications your child is using.

Before taking Montelukast Pensa, inform your doctor if your child is taking the following medications:

  • phenobarbital (used to treat epilepsy)
  • phenytoin (used to treat epilepsy)
  • rifampicin (used to treat tuberculosis and some other infections)

Taking Montelukast Pensa with food, drinks, and alcohol

Montelukast Pensa should not be taken with meals; it should be taken at least 1 hour before or 2 hours after meals.

Pregnancy, breastfeeding, and fertility

This subsection is not applicable to Montelukast Pensa 4 mg chewable tablets, as its use is indicated in children between 2 and 5 years of age. However, the following information is important for the active ingredient, montelukast.

If you are pregnant or breastfeeding, think you may be pregnant, or plan to become pregnant, consult your doctor or pharmacist before using this medication.

Use during pregnancy

Your doctor will assess whether you can take Montelukast Pensa during pregnancy.

Use during breastfeeding

It is unknown whether Montelukast Pensa appears in breast milk. If you are breastfeeding or plan to breastfeed, you should consult your doctor before taking Montelukast Pensa.

Driving and using machines

This subsection is not applicable to Montelukast Pensa 4 mg chewable tablets, as its use is indicated in children between 2 and 5 years of age. However, the following information is important for the active ingredient, montelukast.

Montelukast Pensa is not expected to affect your ability to drive a car or operate machines. However, individual responses to the medication may vary. Certain side effects (such as dizziness and drowsiness) that have been reported very rarely with Montelukast Pensa may affect the patient's ability to drive or operate machines.

Montelukast Pensa contains aspartame,a source of phenylalanine. This medication may be harmful to people with phenylketonuria.

3. How to take Montelukast Pensa

Follow the administration instructions for this medication exactly as indicated by your child's doctor or pharmacist. If in doubt, consult your child's doctor or pharmacist again.

  • Your child should only take one Montelukast Pensa tablet once a day, as prescribed by the doctor.
  • It should be taken even when your child does not have symptoms or when they have an acute asthma attack.
  • It should be taken orally.

Use in children from 2 to 5 years of age:

One 4 mg chewable tablet should be taken daily at night. Montelukast Pensa 4 mg chewable tablets should not be taken with meals; they should be taken at least 1 hour before or 2 hours after meals.

If your child is taking Montelukast Pensa, ensure that they do not take any other product containing the same active ingredient, montelukast.

Use in children

For children between 2 and 5 years of age, Montelukast Pensa 4 mg chewable tablets are available.

For children between 6 and 14 years of age, Montelukast Pensa 5 mg chewable tablets are available.

Montelukast Pensa 4 mg chewable tablets are not recommended for children under 2 years of age.

If your child takes more Montelukast Pensa than they should

Seek help from your child's doctor immediately.

In most cases of overdose, no side effects were reported. The symptoms that occurred most frequently reported in overdose in adults and children were abdominal pain, drowsiness, thirst, headache, vomiting, and hyperactivity.

In case of overdose or accidental ingestion, consult your doctor or pharmacist immediately or call the Toxicology Information Service, phone 91 562 04 20, indicating the medication and the amount ingested.

If you forget to give Montelukast Pensa to your child

Try to give Montelukast Pensa as prescribed. However, if your child forgets a dose, simply resume the usual routine of one tablet once a day. Do not give a double dose to make up for forgotten doses.

If your child stops taking Montelukast Pensa

Montelukast Pensa can only treat your child's asthma if they continue taking it. It is essential that they continue taking Montelukast Pensa for the time prescribed by the doctor. It will help control your child's asthma.

If you have any other questions about the use of this medication, ask your child's doctor or pharmacist.

4. Possible side effects

Like all medications, this medication can cause side effects, although not everyone experiences them.

In clinical trials conducted with montelukast 4 mg chewable tablets, the side effects related to the administration of montelukast and reported most frequently (occurring in at least 1 in 100 patients and less than 1 in 10 patients treated) were:

  • abdominal pain
  • thirst

Additionally, in clinical trials with montelukast 10 mg film-coated tablets and 5 mg chewable tablets, the following side effects were reported:

  • headache

These side effects were generally mild and occurred with a higher frequency in patients treated with montelukast than with placebo (a pill that does not contain medication).

The frequency of possible side effects, indicated below, is defined using the following convention:

  • Very common (affects at least 1 in 10 patients)
  • Common (affects between 1 and 10 in 100 patients)
  • Uncommon (affects between 1 and 10 in 1,000 patients)
  • Rare (affects between 1 and 10 in 10,000 patients)
  • Very rare (affects less than 1 in 10,000 patients)

Additionally, since the medication has been marketed, the following side effects have been reported:

  • upper respiratory tract infection (Very common)
  • increased risk of bleeding (Rare)
  • allergic reactions, including swelling of the face, lips, tongue, and/or throat, which can cause difficulty breathing or swallowing (Uncommon)
  • behavior-related and mood-related changes [sleep disturbances, including nightmares, sleep problems, sleepwalking, irritability, feeling anxious, restlessness, excitement, including aggressive or hostile behavior, depression (Uncommon); tremor (Rare); hallucinations, disorientation, suicidal thoughts and actions, stuttering (Very rare)]
  • dizziness, drowsiness, tingling/numbness, seizures (Uncommon)
  • palpitations (Rare)
  • nasal bleeding (Uncommon)
  • diarrhea, nausea, vomiting (Common); dry mouth, indigestion (Uncommon)
  • hepatitis (inflammation of the liver) (Very rare)
  • skin rash (Common); bruising, itching, hives (Uncommon); red, painful bumps under the skin, which most frequently appear on the shins (erythema nodosum), severe skin reactions (erythema multiforme) that can occur without warning (Very rare)
  • joint or muscle pain, muscle cramps (Uncommon)
  • fever (Common); fatigue, malaise, swelling (Uncommon)

In patients with asthma treated with montelukast, very rare cases of a combination of symptoms such as flu-like illness, tingling or numbness of arms and legs, worsening of lung symptoms, and/or skin rash (Churg-Strauss syndrome) have been reported. You should immediately inform your doctor if you experience one or more of these symptoms.

Reporting side effects:

If your child experiences any side effects, consult your doctor or pharmacist, even if they are possible side effects not listed in this leaflet. You can also report them directly through the Spanish Pharmacovigilance System for Human Use Medicines: https://www.notificaRAM.es. By reporting side effects, you can contribute to providing more information on the safety of this medication.

5. Storage of Montelukast Pensa

Keep this medication out of sight and reach of children.

This medication does not require any special storage temperature.

Keep it in the original packaging to protect it from light and moisture.

Do not use this medication after the expiration date shown on the packaging. The expiration date is the last day of the month indicated.

Medications should not be disposed of through wastewater or household waste. Deposit the packaging and any unused medication in the SIGRE collection point at the pharmacy. If in doubt, ask your pharmacist how to dispose of the packaging and any unused medication. This will help protect the environment.

6. Package contents and additional information

Composition of Montelukast Pensa

The active ingredient is montelukast. Each tablet contains 4 mg of montelukast (as sodium salt).

The other components are: microcrystalline cellulose, mannitol (E-421), sodium croscarmellose, aspartame (E-951), red iron oxide (E-172), magnesium stearate (E-572), cherry flavor (maltodextrin, modified cornstarch, artificial flavors, triacetin, benzyl alcohol).

Appearance of the product and package contents

The 4 mg chewable tablets are pink and biconvex with the code M4 engraved on one side.

The chewable tablets are available in blister packs containing 14, 28, and 98 tablets.

Not all pack sizes may be marketed.

Marketing authorization holder and manufacturer

Marketing authorization holder

Towa Pharmaceutical, S.A.

C/ de Sant Martí, 75-97

08107 Martorelles (Barcelona)

Spain

Manufacturer

Kymos, S.L.

Ronda de Can Fatjó, 7B (Parque Tecnológico del Vallès)

08290 Cerdanyola del Vallès (Barcelona)

Spain

This medication is authorized in the Member States of the European Economic Area under the following names:

PT: Montelucaste Pensa, 4 mg, chewable tablets

ES: Montelukast Pensa 4 mg chewable tablets EFG

IT: Montelukast Pensa 4 mg chewable tablets

Date of the last revision of this leaflet: August 2019

Detailed and updated information on this medication is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/

Online doctors for MONTELUKAST PENSA 4 mg CHEWABLE TABLETS

Discuss questions about MONTELUKAST PENSA 4 mg CHEWABLE TABLETS, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

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Doctor

Hocine Lokchiri

General medicine 21 years exp.

Dr. Hocine Lokchiri is a French consultant with over 20 years of experience in General and Emergency Medicine. He works with adults and children, helping patients with urgent symptoms, infections, sudden health changes and everyday medical concerns that require timely evaluation. His background includes clinical practice in France, Switzerland and the United Arab Emirates, which allows him to navigate different healthcare systems and manage a wide range of conditions with confidence. Patients value his calm, structured approach, clear explanations and evidence-based decision-making.

Online consultations with Dr. Lokchiri are suitable for many situations when someone needs quick medical guidance, reassurance or a clear next step. Common reasons for booking include:

  • fever, chills, fatigue and viral symptoms
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  • bronchitis and mild asthma flare-ups
  • nausea, diarrhoea, abdominal pain, digestive infections
  • rashes, allergic reactions, redness, insect bites
  • muscle or joint pain, mild injuries, sprains
  • headache, dizziness, migraine symptoms
  • stress-related symptoms, sleep disturbances
  • questions about test results and treatment plans
  • management of chronic conditions in stable phases
Many patients reach out when symptoms appear suddenly and cause concern, when a child becomes unwell unexpectedly, when a rash changes or spreads, or when it’s unclear whether an in-person examination is necessary. His emergency medicine background is particularly valuable online, helping patients understand risk levels, identify warning signs and choose safe next steps.

Some situations are not suitable for online care. If a patient has loss of consciousness, severe chest pain, uncontrolled bleeding, seizures, major trauma or symptoms suggesting a stroke or heart attack, he will advise seeking immediate local emergency services. This improves safety and ensures patients receive the right level of care.

Dr. Lokchiri’s professional training includes:

  • Advanced Trauma Life Support (ATLS)
  • Basic and Advanced Cardiac Life Support (BLS/ACLS)
  • Pediatric Advanced Life Support (PALS)
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He is an active member of several professional organisations, including the French Society of Emergency Medicine (SFMU), the French Association for Emergency Physicians (AMUF) and the Swiss Society of Emergency and Rescue Medicine (SGNOR). In consultations, he works with clarity and precision, helping patients understand their symptoms, possible risks and the safest treatment options.
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Doctor

Tomasz Grzelewski

Dermatology 21 years exp.

Dr Tomasz Grzelewski is an MD, PhD specialist in allergy, paediatrics, general practice and sports medicine, with a clinical focus on dermatology, endocrinology, allergology and sports-related health. He has more than 20 years of clinical experience and completed his medical training at the Medical University of Łódź, where he defended his PhD thesis with distinction. His doctoral research was recognised by the Polish Society of Allergology for its innovative contribution to the field. Throughout his career, he has gained extensive expertise in diagnosing and managing a wide range of allergic and paediatric conditions, including modern allergen desensitisation techniques.

For five years, Dr Grzelewski served as the Head of two paediatric departments in Poland, managing complex clinical cases and leading multidisciplinary teams. He also worked in medical centres in the United Kingdom, gaining experience across both primary care and specialist environments. With over a decade of telemedicine experience, he has provided online consultations across Europe and is valued for his clear, structured and evidence-based medical guidance.

Dr Grzelewski is actively involved in clinical programmes focused on modern anti-allergic therapies. As a Principal Investigator, he leads research projects on sublingual and oral allergen desensitisation, supporting evidence-based progress in allergy treatment for both children and adults.

In addition to his background in allergology and paediatrics, he completed dermatology studies through the Cambridge Education Group (Royal College of Physicians of Ireland) and a Clinical Endocrinology course at Harvard Medical School. This advanced training enhances his ability to manage skin manifestations of allergies, atopic conditions, urticaria, endocrine-related symptoms and complex immunological reactions.

Patients commonly seek his care for:

  • seasonal and perennial allergies
  • allergic rhinitis and chronic nasal symptoms
  • asthma and breathing difficulties
  • food and medication allergies
  • urticaria, atopic dermatitis and skin reactions
  • recurrent infections in children
  • sports-related health questions
  • general family medicine concerns
Dr Tomasz Grzelewski is known for his clear communication style, structured medical approach and ability to explain treatment options in a concise and accessible way. His multidisciplinary background across allergy, paediatrics, dermatology and endocrinology allows him to provide safe, up-to-date and comprehensive care for patients of all ages.
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Doctor

Lina Travkina

Family medicine 13 years exp.

Dr. Lina Travkina is a licensed family and preventive medicine doctor based in Italy. She provides online consultations for adults and children, supporting patients across all stages of care – from acute symptom management to long-term health monitoring and prevention.

Areas of medical care include:

  • Respiratory conditions: colds, flu, acute and chronic bronchitis, mild to moderate pneumonia, bronchial asthma.
  • ENT and eye conditions: sinusitis, tonsillitis, pharyngitis, otitis, infectious and allergic conjunctivitis.
  • Digestive issues: gastritis, acid reflux (GERD), IBS, dyspepsia, bloating, constipation, diarrhoea, functional bowel symptoms, intestinal infections.
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  • Chronic conditions: hypertension, diabetes, hypercholesterolemia, metabolic syndrome, thyroid disorders, excess weight.
  • Neurological and general symptoms: headache, migraine, dizziness, fatigue, sleep disturbances, reduced concentration, anxiety, asthenia.
  • Chronic pain support: back, neck, joint, and muscle pain, tension syndromes, pain associated with osteochondrosis and chronic conditions.

Additional care areas:

  • Preventive consultations and check-up planning.
  • Medical advice and follow-up consultations.
  • Test interpretation and diagnostic guidance.
  • Structured support for undiagnosed complaints.
  • Second opinion on diagnoses and treatment plans.
  • Nutritional and lifestyle support for vitamin deficiencies, anaemia, metabolic issues.
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  • Preconception counselling and postpartum support.
  • Immunity support and strategies to reduce frequency of infections.

Dr. Travkina combines evidence-based medicine with an attentive, personalised approach. Her consultations focus not only on treatment, but also on prevention, recovery, and long-term wellbeing.

If during the consultation it becomes clear that your case requires in-person assessment or specialised care outside of her scope, the session will be terminated and the payment fully refunded.

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€70
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Doctor

Alina Tsurkan

Family medicine 13 years exp.

Dr. Alina Tsurkan is a licensed family medicine physician based in Portugal, offering online consultations for adults and children. She provides professional primary care, with a focus on prevention, accurate diagnosis, and long-term management of acute and chronic conditions.

Dr. Tsurkan supports patients with a wide range of health issues, including:

  • Respiratory infections: cold, flu, bronchitis, pneumonia, and lingering coughs.
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  • Eye conditions: allergic or infectious conjunctivitis, red eyes, irritation.
  • Digestive issues: acid reflux (GERD), gastritis, irritable bowel syndrome (IBS), constipation, bloating, nausea.
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  • Chronic diseases: hypertension, elevated cholesterol, weight management.
  • Neurological complaints: headaches, migraines, sleep disturbances, fatigue, general weakness.
  • Children’s health: fever, infections, digestive issues, follow-ups, vaccination guidance.

She also provides:

  • IMT medical certificates for driving licence exchange in Portugal.
  • Personalised preventive care and wellness consultations.
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  • Follow-up care and medication review.
  • Support in managing multiple coexisting conditions.
  • Remote prescription management and medical documentation.

Dr. Tsurkan’s approach is evidence-based and holistic. She works closely with each patient to develop an individualised care plan that addresses both symptoms and root causes. Her goal is to empower patients to take control of their health and maintain well-being through lifestyle adjustments, routine check-ups, and early intervention.

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€55

Frequently Asked Questions

Is a prescription required for MONTELUKAST PENSA 4 mg CHEWABLE TABLETS?
MONTELUKAST PENSA 4 mg CHEWABLE TABLETS requires a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.
What is the active substance in MONTELUKAST PENSA 4 mg CHEWABLE TABLETS?
The active ingredient in MONTELUKAST PENSA 4 mg CHEWABLE TABLETS is montelukast. This information helps identify medicines with the same composition but different brand names.
How much does MONTELUKAST PENSA 4 mg CHEWABLE TABLETS cost in pharmacies?
The average pharmacy price for MONTELUKAST PENSA 4 mg CHEWABLE TABLETS is around 16.84 EUR. Prices may vary depending on the manufacturer and dosage form.
Who manufactures MONTELUKAST PENSA 4 mg CHEWABLE TABLETS?
MONTELUKAST PENSA 4 mg CHEWABLE TABLETS is manufactured by Towa Pharmaceutical S.A.. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of MONTELUKAST PENSA 4 mg CHEWABLE TABLETS online?
Doctors such as Family doctors, Psychiatrists, Dermatologists, Cardiologists, Endocrinologists, Gastroenterologists, Pulmonologists, Nephrologists, Rheumatologists, Hematologists, Infectious disease physicians, Allergists, Geriatricians, Paediatricians, Oncologists may assess whether MONTELUKAST PENSA 4 mg CHEWABLE TABLETS is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.
What are the alternatives to MONTELUKAST PENSA 4 mg CHEWABLE TABLETS?
Other medicines with the same active substance (montelukast) include MONKASTA 10 mg FILM-COATED TABLETS, MONKASTA 4 mg CHEWABLE TABLETS, MONKASTA 5 mg CHEWABLE TABLETS. These may have different brand names or formulations but contain the same therapeutic ingredient. Always consult a doctor before switching or starting a new medicine.
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