Background pattern

MONTELUKAST ALTER 4 mg CHEWABLE TABLETS

Ask a doctor about a prescription for MONTELUKAST ALTER 4 mg CHEWABLE TABLETS

This page is for general information. Consult a doctor for personal advice. Call emergency services if symptoms are severe.
About the medicine

How to use MONTELUKAST ALTER 4 mg CHEWABLE TABLETS

Introduction

Patient Information Leaflet

Montelukast Alter 4 mg

chewable tablets EFG

Read all of this leaflet carefully before giving this medicine to your child, because it contains important information.

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

Contents of the pack:

  1. What is Montelukast Alter and what is it used for
  2. What you need to know before your child takes Montelukast Alter
  3. How to take Montelukast Alter
  4. Possible side effects
  5. Storage of Montelukast Alter
  6. Contents of the pack and further information

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

What is Montelukast Alter

Montelukast is a leukotriene receptor antagonist that blocks substances called leukotrienes.

How it worksMontelukast Alter

Leukotrienes cause narrowing and swelling of the airways in the lungs. By blocking leukotrienes, montelukast 4 mg improves asthma symptoms and helps control asthma.

When to useMontelukast Alter

Your doctor has prescribed montelukast 4 mg to treat your child's asthma and prevent asthma symptoms during the day and night.

  • Montelukast is used to treat patients between 2 and 5 years of age who are not adequately controlled with their medication and need additional treatment.
  • Montelukast 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 their asthma and have shown that they are unable to use inhaled corticosteroids.
  • Montelukast also helps prevent narrowing of the airways caused by exercise in patients 2 years of age and older.

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

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.

2. What you need to know before your child takes Montelukast Alter

Tell your doctor about any allergy or medical problem your child has now or has had.

Do not giveMontelukast Alterto your child

  • if your child is allergic to montelukast or any of the other ingredients of this medicine (listed in section 6).

Warnings and precautions

Consult your doctor or pharmacist before giving montelukast 4 mg to your child.

  • If your child's asthma or breathing worsens, tell your doctor immediately.
  • Montelukast oral is not indicated for the treatment of acute asthma attacks. If an attack occurs, follow the instructions your doctor has given your child. Always have your child's rescue inhaler medication for asthma attacks.
  • It is essential that your child uses all asthma medications prescribed by their doctor. Montelukast should not be used instead of other asthma medications prescribed by your child's doctor.
  • If your child is being treated with asthma medications, be aware that if they develop 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 their doctor.
  • Your child should not take aspirin or non-steroidal anti-inflammatory drugs (also known as non-steroidal anti-inflammatory medications or NSAIDs) if they make their asthma worse.

Various neuropsychiatric events (such as changes related to behavior and mood, depression, and suicide) have been reported in patients of all ages treated with montelukast (see section 4). If your child develops such symptoms while taking montelukast, they should contact their doctor.

Children and other adolescents

Do not give this medicine to children under 2 years of age.

For pediatric patients under 18 years of age, other formulations of this medicine are available based on the age range.

Other medicines and Montelukast Alter

Tell your doctor or pharmacist if your child is taking, has recently taken, or might take any other medicines, including those obtained without a prescription.

Some medicines may affect the way montelukast 4 mg works, or montelukast 4 mg may affect the way other medicines work that your child is using.

Before taking montelukast, tell your doctor if your child is taking the following medicines:

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

Taking Montelukast Alterwith food and drinks

Montelukast 4 mg chewable tablets should not be taken with food; they should be taken at least 1 hour before or 2 hours after food.

Pregnancy and breastfeeding

This subsection is not applicable to montelukast 4 mg chewable tablets, as their use is indicated in children between 2 and 5 years of age.

Driving and using machines

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

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

Montelukast Alter4 mgchewable tablets contain aspartame and sodium

This medicine contains 2.40 mg of aspartame in each tablet.

Aspartame is a source of phenylalanine that may be harmful in case of phenylketonuria (PKU), a rare genetic disease in which phenylalanine accumulates because the body is unable to eliminate it properly.

This medicine contains less than 23 mg of sodium (1mmol) per tablet, which is essentially "sodium-free".

3. How to take Montelukast Alter

Follow exactly the administration instructions of this medicine indicated by your doctor or pharmacist for your child. In case of doubt, consult your child's doctor or pharmacist again.

  • This medicine should be administered to children under adult supervision. For children who have problems taking a chewable tablet, an oral granule formulation is available.
  • Your child should only take one montelukast chewable tablet once a day, as prescribed by their doctor.
  • It should be taken even when your child does not have symptoms or when they have an acute asthma attack.

For children from2 to5 years of age:

The recommended dose is one 4 mg chewable tablet daily in the evening.

If your child is taking montelukast, make sure they do not take any other medicine that contains the same active substance, montelukast.

This medicine is taken orally.

The tablets should be chewed before swallowing.

Montelukast 4 mg chewable tablets should not be taken with food; they should be taken at least 1 hour before or 2 hours after food.

If your child takes moreMontelukast Alterthan 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, pharmacist, or call the Toxicology Information Service, phone 91 562 04 20, indicating the medicine and the amount ingested. It is recommended to take the packaging and the leaflet of the medicine to the healthcare professional.

If you forget to giveMontelukast Alterto your child

Try to give montelukast 4 mg as prescribed. However, if your child forgets a dose, just resume the usual intake of one tablet once a day.

Do not give a double dose to make up for forgotten doses.

If your child stops takingMontelukast Alter

Montelukast can only treat your child's asthma if they continue taking it.

It is essential that your child continues taking montelukast for the time their doctor prescribes it. It will help control your child's asthma.

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

4. Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them.

In clinical trials with montelukast 4 mg chewable tablets, the side effects related to the administration of the medicine and reported most frequently (may affect up to 1 in 10 people) were:

  • abdominal pain
  • thirst

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

  • headache

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

Serious side effects

Consult your doctor immediatelyif you observe any of the following side effects in your child, which may be serious and require urgent medical treatment.

Uncommon (may affect up to 1 in 100 people):

  • allergic reactions that include swelling of the face, lips, tongue, and/or throat that can cause difficulty breathing or swallowing;
  • changes related to behavior and mood: excitement including aggressive or hostile behavior, depression
  • seizures

Rare (may affect up to 1 in 1,000 people):

  • increased risk of bleeding
  • tremor
  • palpitations

Very rare (may affect up to 1 in 10,000 people):

  • 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) (see section 2)
  • low platelet count
  • changes related to behavior and mood: hallucinations, disorientation, suicidal thoughts and actions
  • inflammation (inflammation) of the lungs
  • severe skin reactions (erythema multiforme) that can occur without warning
  • inflammation of the liver (hepatitis)

Other side effects reported during the marketing of the medicine

Very common (may affect more than 1 in 10 people):

  • upper respiratory infection

Common (may affect up to 1 in 10 people):

  • diarrhea, nausea, vomiting
  • skin rash
  • fever
  • elevated liver enzymes

Uncommon (may affect up to 1 in 100 people):

  • changes related to behavior and mood: sleep disturbances, including nightmares, sleep problems, sleepwalking, irritability, feeling anxious, restlessness
  • dizziness, drowsiness, tingling/numbness
  • nosebleeds
  • dry mouth, indigestion
  • bruises, itching, hives
  • joint or muscle pain, muscle cramps
  • bedwetting (in children)
  • weakness/tiredness, malaise, swelling

Rare (may affect up to 1 in 1,000 people):

  • changes related to behavior and mood: attention disturbance, memory disturbance, uncontrolled muscle movements

Very rare (may affect up to 1 in 10,000 people):

  • red painful lumps under the skin that most frequently appear on the shins (erythema nodosum)
  • changes related to behavior and mood: obsessive-compulsive symptoms, stuttering

Reporting of side effects

If your child experiences any side effects, consult your doctor or pharmacist, even if they are 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 help provide more information on the safety of this medicine.

5. Storage of Montelukast Alter

  • Keep this medicine out of the sight and reach of children.
  • Do not use this medicine after the expiry date stated on the blister after EXP. The first two numbers indicate the month; the last four numbers indicate the year. The expiry date is the last day of the month indicated.
  • Store in the original packaging to protect from light and moisture.
  • Medicines should not be disposed of via wastewater or household waste. Place the packaging and any unused medicine in the SIGRE Collection Point (or any other pharmaceutical waste collection system) at your pharmacy. If you have any further questions, ask your pharmacist how to dispose of the packaging and any unused medicine. This will help protect the environment.

6. Contents of the pack and further information

Composition of Montelukast Alter:

  • The active substance is montelukast. Each tablet contains montelukast sodium equivalent to 4 mg of montelukast.
  • The other ingredients are: mannitol, microcrystalline cellulose, hydroxypropylcellulose, red iron oxide (E 172), sodium croscarmellose, strawberry flavor, aspartame (E 951), and magnesium stearate.

Appearance of the product and contents of the pack

The 4 mg chewable tablets are pink, oval, biconvex, and have the inscription "4" on one side.

They are available in packs of 28 tablets.

Marketing authorization holder

Laboratorios Alter, S.A.

C/ Mateo Inurria, 30

28036 Madrid-Spain

Manufacturer

Neuraxpharm Pharmaceuticals, S.L.

Avda. Barcelona, 69

08970 Sant Joan Despí, Barcelona

Spain

This leaflet was approved in:March 2025

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

About the medicine

How much does MONTELUKAST ALTER 4 mg CHEWABLE TABLETS cost in Spain ( 2025)?

The average price of MONTELUKAST ALTER 4 mg CHEWABLE TABLETS in November, 2025 is around 16.84 EUR. Prices may vary depending on the region, pharmacy, and whether a prescription is required. Always check with a local pharmacy or online source for the most accurate information.

Alternatives to MONTELUKAST ALTER 4 mg CHEWABLE TABLETS in other countries

The best alternatives with the same active ingredient and therapeutic effect.

Alternative to MONTELUKAST ALTER 4 mg CHEWABLE TABLETS in Poland

Dosage form: Tablets, 5 mg
Active substance: montelukast
Marketing authorisation holder (MAH): N.V. Organon
Prescription required
Dosage form: Tablets, 5 mg
Active substance: montelukast
Marketing authorisation holder (MAH): N.V. Organon
Prescription required
Dosage form: Tablets, 4 mg
Active substance: montelukast
Marketing authorisation holder (MAH): N.V. Organon
Prescription required
Dosage form: Tablets, 10 mg
Active substance: montelukast
Marketing authorisation holder (MAH): N.V. Organon
Prescription required
Dosage form: Tablets, 10 mg
Active substance: montelukast
Marketing authorisation holder (MAH): N.V. Organon
Prescription required
Dosage form: Tablets, 5 mg
Active substance: montelukast
Marketing authorisation holder (MAH): N.V. Organon
Prescription required

Alternative to MONTELUKAST ALTER 4 mg CHEWABLE TABLETS in Ukraine

Dosage form: tablets, 10 mg tablets in blister
Active substance: montelukast
Manufacturer: Merk Sarp i Doum B.V.
Prescription required
Dosage form: tablets, 10 mg
Active substance: montelukast
Prescription required
Dosage form: tablets, 4 mg
Active substance: montelukast
Prescription required

Online doctors for MONTELUKAST ALTER 4 mg CHEWABLE TABLETS

Discuss dosage, side effects, interactions, contraindications, and prescription renewal for MONTELUKAST ALTER 4 mg CHEWABLE TABLETS – subject to medical assessment and local rules.

0.0(0)
Doctor

Roman Raevskii

General medicine6 years of experience

Dr. Roman Raevskii is a licensed general practitioner in Spain, offering online medical consultations with a strong focus on prevention, early diagnosis, and personalized care. He combines evidence-based clinical expertise with a patient-centered approach to deliver comprehensive support.

Dr. Raevskii provides medical care in the following areas:

  • Diagnosis and management of common conditions: hypertension, diabetes, respiratory and digestive disorders.
  • Oncological consultations: early cancer detection, risk evaluation, and treatment navigation.
  • Supportive care for oncology patients – pain control, symptom relief, and side effect management.
  • Preventive medicine and health screenings.
  • Development of tailored treatment plans based on clinical guidelines.

With a patient-centred approach, Dr. Raevskii helps individuals manage both chronic illnesses and complex oncological cases. His consultations are guided by current medical standards and adapted to each patient’s needs.

CameraBook a video appointment
€50
November 1010:00
November 1010:30
November 1011:00
November 1011:30
November 1012:00
More times
5.0(4)
Doctor

Mar Tabeshadze

Endocrinology10 years of experience

Dr. Mar Tabeshadze is a licensed endocrinologist and general practitioner in Spain. She provides online consultations for adults, offering medical support for a wide range of endocrine conditions and related health concerns.

  • Diagnostic consultations for suspected endocrine disorders
  • Management of thyroid conditions, including in pregnant women
  • Early detection and treatment of type 1 and type 2 diabetes, with personalised therapy plans
  • Obesity treatment: identifying underlying causes of weight gain, combining medication and non-pharmacological strategies, and long-term support
  • Diagnosis and treatment of endocrine-related skin, hair, and nail issues
  • Ongoing care for patients with osteoporosis, pituitary, and adrenal gland disorders
Dr. Tabeshadze takes a patient-centred approach based on evidence-based medicine. Her goal is to help patients achieve hormonal balance, manage chronic conditions effectively, and improve overall well-being through targeted, personalised care.
CameraBook a video appointment
€55
November 1011:00
November 1111:00
November 1211:00
November 1311:00
November 1411:00
More times
5.0(14)
Doctor

Jonathan Marshall Ben Ami

Family medicine8 years of experience

Dr. Jonathan Marshall Ben Ami is a licensed family medicine doctor in Spain. He provides comprehensive care for adults and children, combining general medicine with emergency care expertise to address both acute and chronic health concerns.

Dr. Ben Ami offers expert diagnosis, treatment, and follow-up for:

  • Respiratory infections (cold, flu, bronchitis, pneumonia).
  • ENT conditions such as sinusitis, ear infections, and tonsillitis.
  • Digestive issues including gastritis, acid reflux, and irritable bowel syndrome (IBS).
  • Urinary tract infections and other common infections.
  • Management of chronic diseases: high blood pressure, diabetes, thyroid disorders.
  • Acute conditions requiring urgent medical attention.
  • Headaches, migraines, and minor injuries.
  • Wound care, health check-ups, and ongoing prescriptions.

With a patient-focused and evidence-based approach, Dr. Ben Ami supports individuals at all stages of life — offering clear medical guidance, timely interventions, and continuity of care.

CameraBook a video appointment
€55
November 1015:00
November 1015:45
November 1016:30
November 1017:15
November 1018:00
More times
5.0(38)
Doctor

Yevgen Yakovenko

General surgery11 years of experience

Dr. Yevgen Yakovenko is a licensed surgeon and general practitioner in Spain and Germany. He specialises in general, paediatric, and oncological surgery, internal medicine, and pain management. He offers online consultations for adults and children, combining surgical precision with therapeutic support. Dr Yakovenko works with patients across different countries and provides care in Ukrainian, Russian, English, and Spanish.

Areas of medical expertise:

  • Acute and chronic pain: headaches, muscle and joint pain, back pain, abdominal pain, postoperative pain. Identifying the cause, selecting treatment, and creating a care plan.
  • Internal medicine: heart, lungs, gastrointestinal tract, urinary system. Management of chronic conditions, symptom control, second opinions.
  • Pre- and postoperative care: risk assessment, decision-making support, follow-up after surgery, rehabilitation strategies.
  • General and paediatric surgery: hernias, appendicitis, congenital conditions, both planned and urgent surgeries.
  • Injuries and trauma: bruises, fractures, sprains, soft tissue damage, wound care, dressing, referral when in-person care is required.
  • Oncological surgery: diagnosis review, treatment planning, and long-term follow-up.
  • Obesity treatment and weight management: a medical approach to weight loss, including assessment of underlying causes, evaluation of comorbidities, development of a personalised plan (nutrition, physical activity, pharmacotherapy if needed), and ongoing progress monitoring.
  • Imaging interpretation: analysis of ultrasound, CT, MRI, and X-ray results, surgical planning based on imaging data.
  • Second opinions and medical navigation: clarifying diagnoses, reviewing current treatment plans, helping patients choose the best course of action.

Experience and qualifications:

  • 12+ years of clinical experience in university hospitals in Germany and Spain.
  • International education: Ukraine – Germany – Spain.
  • Member of the German Society of Surgeons (BDC).
  • Certified in radiological diagnostics and robotic surgery.
  • Active participant in international medical conferences and research.

Dr Yakovenko explains complex topics in a clear, accessible way. He works collaboratively with patients to analyse health issues and make evidence-based decisions. His approach is grounded in clinical excellence, scientific accuracy, and respect for each individual.

If you are unsure about a diagnosis, preparing for surgery, or want to discuss your test results – Dr Yakovenko will help you evaluate your options and move forward with confidence.

CameraBook a video appointment
€54
November 1015:00
November 1015:40
November 1016:20
November 1017:00
November 1017:40
More times
5.0(131)
Doctor

Andrei Popov

General medicine6 years of experience

Dr. Andrei Popov is a licensed pain management specialist and general practitioner based in Spain. He provides expert online care for adults dealing with both chronic and acute pain, as well as a wide range of everyday health concerns.

He specialises in diagnosing and treating pain conditions that affect quality of life, including:

  • Chronic pain lasting more than 3 months.
  • Migraines and recurring headaches.
  • Neck, back, lower back, and joint pain.
  • Post-traumatic pain following injury or surgery.
  • Nerve-related pain, fibromyalgia, and neuralgia.
In addition to pain management, Dr. Popov helps patients with:
  • Respiratory infections (colds, bronchitis, pneumonia).
  • High blood pressure and metabolic conditions such as diabetes.
  • Preventive care and routine health check-ups.

Online consultations last up to 30 minutes and include a detailed symptom review, personalised treatment planning, and medical follow-up when needed.

Dr. Popov’s approach is rooted in evidence-based medicine, combined with individualised care tailored to each patient’s history, lifestyle, and clinical needs.

CameraBook a video appointment
€59
November 1016:00
November 1016:30
November 1017:00
November 1017:30
November 1018:00
More times
0.0(3)
Doctor

Alexandra Alexandrova

General medicine8 years of experience

Dr Alexandra Alexandrova is a licensed general medicine doctor in Spain, specialising in trichology, nutrition, and aesthetic medicine. She offers online consultations for adults, combining a therapeutic approach with personalised care for hair, scalp, and overall health.

Areas of expertise:

  • Hair loss in women and men, postpartum hair loss, androgenetic and telogen effluvium.
  • Scalp conditions: seborrheic dermatitis, psoriasis, scalp irritation, dandruff.
  • Chronic conditions: hypertension, diabetes, metabolic disorders.
  • Online trichology consultation: customised treatment plans, nutritional support, hair growth stimulation.
  • Hair loss prevention: hormonal imbalance, stress factors, haircare strategies.
  • Routine health check-ups, prevention of cardiovascular and metabolic diseases.
  • Personalised nutritional advice to improve hair strength, skin health, and hormonal balance.
  • Aesthetic medicine: non-invasive strategies to enhance skin quality, tone, and metabolic wellness.

Dr Alexandrova follows an evidence-based and holistic approach: online consultations with a therapist and trichologist on Oladoctor provide professional support for hair, scalp, and overall health — all from the comfort of your home.

CameraBook a video appointment
€59
November 1310:00
November 1310:30
November 1311:00
November 1311:30
November 2009:00
More times

Get updates and exclusive offers

Be the first to know about new services, marketplace updates, and subscriber-only promos.

Follow us on social media
FacebookInstagram
Logo
Oladoctor
Find a doctor
Doctors by specialty
Services
Choose language
© 2025 Oladoctor. All rights reserved.
VisaMastercardStripe