ventair 5mg tablet - Montelukast (5mg) medicine

Montelukast 5mg Tablet: Complete Guide to Uses, Side Effects, and Safety

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🏭 Merck Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 25, 2026
📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: High for asthma and allergic rhinitis; moderate for exercise-induced bronchoconstriction.
Reviewed by
SaathiMed Expert Panel | Sep 25, 2026

When to Call Your Doctor IMMEDIATELY

  • Sudden severe shortness of breath or difficulty breathing
  • Swelling of the face, lips, tongue, or throat
  • Chest pain or palpitations
  • Severe mood changes, depression, or suicidal thoughts
  • Yellowing of the skin or eyes (jaundice)
  • Severe abdominal pain
  • Signs of a severe allergic reaction such as rash, itching, or hives

If experiencing severe symptoms, call emergency services immediately.

What is ventair 5mg tablet used for?

This medicine contains Montelukast 5 mg, used to prevent asthma attacks and relieve allergic rhinitis symptoms. It works by blocking leukotrienes, chemicals that cause airway swelling. It is not for sudden asthma attacks.

  • Generic Name: Montelukast (5mg)
  • Manufacturer: Merck Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 ventair 5mg tablet के बारे में (Hindi Summary)

उपयोग: यह दवा मोंटेलुकास्ट 5 मिलीग्राम युक्त एक ओरल टैबलेट है। इसका उपयोग अस्थमा के दौरे को रोकने और एलर्जिक राइनाइटिस के लक्षणों जैसे नाक बहना, छींक आना और नाक बंद होना को कम करने के लिए किया जाता है। यह व्यायाम से होने वाली सांस की तकलीफ को रोकने में भी मदद करती है। यह दवा तुरंत अस्थमा के दौरे के इलाज के लिए नहीं है। इसे रोजाना एक बार शाम को लेना चाहिए।

साइड इफेक्ट्स: आम दुष्प्रभावों में सिरदर्द, पेट दर्द और हल्का चक्कर आना शामिल हैं। कुछ लोगों को मूड में बदलाव, नींद में गड़बड़ी या एलर्जी की प्रतिक्रिया हो सकती है। गंभीर दुष्प्रभाव दुर्लभ हैं लेकिन अगर आपको मानसिक स्वास्थ्य में कोई बदलाव दिखे तो तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: इस दवा को डॉक्टर के बताए अनुसार ही लें। अस्थमा के अचानक दौरे के लिए इसका उपयोग न करें; हमेशा रेस्क्यू इनहेलर पास रखें। अपने डॉक्टर को अन्य सभी दवाओं के बारे में बताएं। शराब का सेवन न करें क्योंकि इससे चक्कर आ सकते हैं। गर्भावस्था या स्तनपान के दौरान डॉक्टर से सलाह लें। बेहतर महसूस होने पर भी दवा बंद न करें।

💡 Did You Know? India has the highest number of USFDA-compliant plants outside the USA.

💊 ventair 5mg tablet Uses & Benefits

[{"condition":"Asthma","description":"Used for prophylaxis and chronic treatment of asthma in adults and children, helping to prevent asthma attacks and improve breathing.","evidence":"Well-established"},{"condition":"Exercise-induced bronchoconstriction","description":"Prevents narrowing of airways triggered by physical activity.","evidence":"Well-established"},{"condition":"Allergic rhinitis","description":"Relieves symptoms such as sneezing, runny nose, and nasal congestion caused by allergies.","evidence":"Well-established"}]

Off-label uses: [{"condition":"Urticaria","description":"Sometimes used to treat chronic hives when other treatments are not effective.","evidence":"Limited"}]

Primary treatment for: Asthma

Also treats: Allergic rhinitis, Exercise-induced bronchoconstriction

📋 Drug Information

Generic Name(s)Montelukast (5mg)
Brand Nameventair 5mg tablet
ManufacturerMerck Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassRESPIRATORY
Action ClassLeukotriene antagonists
Route of AdministrationOral
StorageStore at room temperature between 15°C and 30°C (59°F to 86°F). Protect from moisture and light. Keep out of reach of children.
Shelf Life24 months from the date of manufacture.
WHO GuidelineMontelukast is included in WHO essential medicines list for asthma management. It is recommended as an add-on controller medication in asthma guidelines.
ICMR GuidelineICMR guidelines for asthma management include montelukast as an option for add-on therapy in patients not controlled on inhaled corticosteroids.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Take this medicine at the same time each evening for best results.
2
Do not use this medicine to treat a sudden asthma attack; always use your rescue inhaler.
3
Inform your doctor if you have a history of mental health conditions before starting this medicine.
4
Chew the chewable tablet thoroughly before swallowing; do not swallow it whole.
5
Keep a diary of your symptoms to help your doctor assess the effectiveness of the treatment.
6
Report any unusual mood changes, sleep problems, or suicidal thoughts to your doctor immediately.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Wheezing and shortness of breath
This medicine is commonly prescribed for asthma prevention.
Likely Use
✅
Sneezing and runny nose
This medicine can help with allergic rhinitis symptoms.
Likely Use
❌
Fever
This medicine is not a primary fever reducer.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionThis medicine is rapidly absorbed after oral administration. The absorption is not significantly affected by food.
DistributionMontelukast is highly bound to plasma proteins, primarily albumin. It distributes into tissues, including the airways.
Protein BindingMore than 99% bound to plasma proteins.
MetabolismExtensively metabolized in the liver by cytochrome P450 enzymes, mainly CYP2C8 and CYP3A4.
Half-LifeThe elimination half-life is approximately 2.7 to 5.5 hours in healthy adults.
ExcretionPrimarily excreted in bile and feces, with minimal excretion in urine.
BioavailabilityThe oral bioavailability is approximately 64% for the 10 mg tablet. For the 5 mg chewable tablet, bioavailability may be similar but is not well established from the available information.
Onset of ActionThe onset of action is not immediate; it may take several days to weeks for full therapeutic effect. For exercise-induced bronchoconstriction, protection occurs within a few hours after the first dose.
Peak Plasma TimePeak plasma concentrations are reached in about 3 to 4 hours for the 10 mg tablet. For the 5 mg chewable tablet, the peak time is approximately 2 to 2.5 hours.
Duration of ActionThe duration of action is approximately 24 hours, allowing for once-daily dosing.

How It Works

This medicine works by selectively blocking the cysteinyl leukotriene receptor type 1 (CysLT1) in the airways and other tissues. Leukotrienes are inflammatory substances released by the body during allergic reactions and asthma triggers. By blocking these receptors, this medicine reduces airway swelling, mucus production, and tightening of the muscles around the airways, leading to easier breathing and fewer asthma symptoms.

Mechanism Steps

1
Leukotriene release: In response to allergens or other triggers, the body releases leukotrienes, which are inflammatory molecules.
2
Receptor binding: This medicine binds to the CysLT1 receptor, preventing leukotrienes from attaching to it.
3
Reduced inflammation: Blocking the receptor reduces airway swelling, mucus production, and muscle tightening.
4
Improved breathing: As a result, airways remain open, and asthma symptoms are prevented or reduced.

💡 How to Take ventair 5mg tablet

Strength: Montelukast 5 mg chewable tablet

1Take this medicine by mouth, with or without food.
2If it is a chewable tablet, chew it thoroughly before swallowing.
3Take it at the same time each day, preferably in the evening.
4Do not take extra doses to make up for a missed one.
5Continue taking it regularly even if you feel well.

Dosage Information

Adult DosageThe usual adult dose for asthma and allergic rhinitis is 10 mg once daily in the evening. For exercise-induced bronchoconstriction, take at least 2 hours before exercise. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function.
Pediatric DosageFor children aged 6 to 14 years, the usual dose is 5 mg chewable tablet once daily in the evening. For children aged 2 to 5 years, the dose is 4 mg chewable tablet or oral granules once daily. For children aged 12 months to 2 years, the dose is 4 mg oral granules once daily. Dosing must be individualized by a pediatrician based on the child's condition and weight.
Elderly DosageNo dose adjustment is required for elderly patients based on age alone. However, use with caution due to potential for reduced hepatic and renal function. Dose must be individualized by a qualified clinician.
Renal ImpairmentNo dose adjustment is required for patients with mild to moderate renal impairment. Use with caution in severe renal impairment as data are limited.
Hepatic ImpairmentFor patients with mild to moderate hepatic impairment, no dose adjustment is needed. For severe hepatic impairment, use with caution as data are limited. Dose must be individualized by a qualified clinician.
Maximum Daily DoseThe maximum recommended daily dose is 10 mg for adults and adolescents 15 years and older. For children, the maximum dose is based on age as described in pediatric dosing.

Dosage Timeline

🌅 Morning ❌ ☀️ Afternoon ❌ 🌆 Evening ❌ 🌙 Night ❌

🍽️ Food Timing Guide

Any food
Can be taken with or without food
Food does not significantly affect absorption.

⏰ What to Do If You Miss a Dose

📌 Less than 12 hours late
→ Take the missed dose as soon as you remember.
💡 Continue with the regular schedule.
📌 More than 12 hours late
→ Skip the missed dose.
💡 Do not double dose to catch up.

⚠️ Side Effects of ventair 5mg tablet

✅ Common Side Effects

Headache (Common (5-10%))
Usually resolves on its own. Consult doctor if persistent or severe.
Abdominal pain (Common (5-10%))
Take with food to reduce stomach upset. Consult doctor if pain persists.
Dizziness (Common (1-5%))
Avoid driving or operating machinery if affected. Consult doctor if it continues.
Runny nose (Common (1-5%))
Usually temporary. Consult doctor if bothersome.

🚨 Serious Side Effects

Neuropsychiatric events (e.g., agitation, depression, sleep disturbances, suicidal thoughts) (Rare (<0.1%))
Seek immediate medical attention if you experience mood changes, depression, or suicidal thoughts.
Severe allergic reactions (e.g., swelling of face, lips, tongue, throat; difficulty breathing) (Rare (<0.1%))
Seek emergency medical help immediately.
Eosinophilic granulomatosis with polyangiitis (EGPA), a rare blood vessel inflammation (Very rare (<0.01%))
Report symptoms like fever, muscle pain, numbness, or rash to your doctor promptly.

⚠️ Rare Side Effects

Increased bleeding tendency
Palpitations
Elevated liver enzymes
Hepatitis
Memory impairment
Seizures

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Rifampicin Major
Gemfibrozil Major
Warfarin Moderate
Carbamazepine Moderate
Phenytoin Moderate
Phenobarbital Moderate
Aspirin Minor

🚨 Major Interactions

  • Strong CYP3A4 inducers (e.g., rifampicin, carbamazepine, phenytoin)
  • Gemfibrozil

⚡ Moderate Interactions

  • Warfarin
  • Phenobarbital

🍷 Alcohol Interaction

Alcohol may increase dizziness and drowsiness. It is advisable to avoid or limit alcohol while taking this medicine.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Hypersensitivity to montelukast or any component of the formulation"]

⚠️ Warnings & Precautions

["Not for acute asthma attacks; always have a rescue inhaler available.","Neuropsychiatric events have been reported; monitor for mood changes.","Use with caution in patients with liver disease.","Do not abruptly stop systemic corticosteroids when starting this medicine; taper gradually under medical supervision.","Rare cases of eosinophilic granulomatosis with polyangiitis have been reported, often in patients tapering oral corticosteroids."]

🤱 Lactation Safety

Montelukast is excreted in breast milk in small amounts. It is generally considered safe during breastfeeding, but consult your doctor to weigh benefits and risks.

💊 Overdose Management

There is no specific antidote for montelukast overdose. Treatment should be symptomatic and supportive. In case of overdose, contact a poison control center or emergency room immediately.

⏰ Missed Dose

If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double the dose to catch up.

Additional Safety Advice

General Safety

Take this medicine exactly as prescribed by your doctor. Do not use it to relieve a sudden asthma attack; always keep a rescue inhaler available. Inform your doctor about all other medicines you are taking, especially those for seizures or blood thinning. Avoid alcohol while taking this medicine as it may increase dizziness. If you are pregnant or breastfeeding, consult your doctor before use. Do not stop taking this medicine without medical advice, even if you feel better.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients may be more sensitive to side effects such as dizziness. Use with caution and monitor for any changes in mood or behavior.

🤰 Pregnancy Planning (TTC)

If you are planning to become pregnant, consult your doctor. This medicine is generally considered safe during pregnancy, but the benefits and risks should be weighed.

🏥 Post-Surgery Considerations

Inform your surgeon and anesthesiologist that you are taking this medicine. It is generally safe to continue, but your doctor will advise based on your specific situation.

🦷 Dental Procedures

No specific precautions are needed for dental procedures. However, inform your dentist about all medicines you are taking.

💚 Lifestyle Tips for Better Results

🏃
Identify and avoid asthma triggers such as dust, pollen, and smoke.
🥗
Maintain a healthy weight to reduce asthma severity.
😴
Practice breathing exercises to improve lung function.
💧
Get vaccinated against influenza and pneumonia.
🧘
Keep a rescue inhaler with you at all times.
🌞
Follow a balanced diet rich in fruits and vegetables.

🏋️ Exercise Considerations

This medicine can prevent exercise-induced bronchoconstriction. However, if you experience breathing difficulty during exercise, stop and use your rescue inhaler. Consult your doctor before starting a new exercise regimen.

🥗 Diet Recommendations

Include omega-3 rich foods like fish and flaxseed.
Reduce intake of processed foods and added sugars.
Stay well hydrated.
Avoid known food allergens.

💼 Impact on Daily Work & Life

This medicine may cause dizziness in some people. Avoid driving or operating heavy machinery until you know how it affects you. It should not interfere with most daily activities.

🛑 When to Stop This Medicine

Do not stop taking this medicine without consulting your doctor. If you experience serious side effects, contact your doctor immediately. Your doctor may adjust or stop the medicine based on your condition.

📅 Long-Term Use Effects

Long-term use of this medicine is generally safe. Rare neuropsychiatric effects may occur. Regular monitoring of mood and behavior is advised. Liver function should be monitored if symptoms arise. Do not stop without consulting your doctor.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Inhaled corticosteroids

First-line controller therapy for asthma.

Evidence: Well-established
Allergen avoidance

Reducing exposure to allergens can help control symptoms.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No specific vaccine interactions are known. However, it is important to stay up to date with influenza and pneumonia vaccines, especially if you have asthma.

📦 Storage Guide

✅ DO

Store at room temperature (15-30°C)

❌ DON'T

Do not refrigerate unless specified

✅ DO

Keep in original container

❌ DON'T

Do not transfer to unmarked containers

✅ DO

Keep away from direct sunlight

❌ DON'T

Do not store in bathroom cabinet

✈️ Traveling with This Medicine

Carry this medicine in its original packaging with a copy of your prescription. Store at room temperature and protect from moisture. If traveling across time zones, continue taking it at the same local time each day. Check customs regulations for carrying prescription medicines.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 10-year-old boy with mild persistent asthma
He was prescribed this medicine as an add-on to his inhaled corticosteroid. After 4 weeks, his nighttime symptoms decreased significantly, and he could play sports without wheezing. His parents noted that taking it in the evening became a simple routine.
💡 Lesson: Regular use of this medicine can improve asthma control and quality of life in children.
👤 A 35-year-old woman with allergic rhinitis
She suffered from seasonal allergies with sneezing and runny nose. After starting this medicine, her symptoms improved within a week. She experienced mild headache initially, which resolved after a few days.
💡 Lesson: This medicine can effectively relieve allergy symptoms, and mild side effects often subside with continued use.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: This medicine may take several days to weeks to show full effect. For exercise-induced bronchoconstriction, it works within a few hours after the first dose.

Q: Can I take it if I am pregnant?

A: Consult your doctor. It is generally considered safe when clinically needed, but human data are limited.

Q: What should I do if I miss a dose?

A: Take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double the dose.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I take this medicine long-term?
  • Will it affect my kidney function?
  • Can I drive after taking this medicine?
  • Does it interact with my blood pressure medicine?
  • What if I miss a dose?
  • Can I drink alcohol while taking this?

🔄 Substitutes for ventair 5mg tablet

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: This medicine can be used to treat sudden asthma attacks.
    Fact: This medicine is for prevention and long-term control, not for immediate relief of an acute attack.
  • Myth: It is a steroid.
    Fact: This medicine is not a steroid; it is a leukotriene receptor antagonist.
  • Myth: It can be stopped once symptoms improve.
    Fact: It should be continued as prescribed to maintain control; stopping suddenly may worsen symptoms.

🔄 Alternative Options

Generic Alternatives

  • Montelukast 5 mg chewable tablet (various manufacturers)

Brand Alternatives

  • Montair 5 mg chewable tablet
  • Singulair 5 mg chewable tablet
  • Montelukast 5 mg chewable tablet (generic)

📊 Comparison with Similar Medicines

[{"medicine":"Montelukast","class":"Leukotriene receptor antagonist","route":"Oral","frequency":"Once daily","common_use":"Asthma, allergic rhinitis"},{"medicine":"Zafirlukast","class":"Leukotriene receptor antagonist","route":"Oral","frequency":"Twice daily","common_use":"Asthma"}]

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