Allegra-M Tablet
10 Tablet(s) in StripProduct Summary
Allegra M Tablet, from Sanofi, combines montelukast 10 mg and fexofenadine 120 mg, a leukotriene receptor antagonist and antihistamine combination used to treat allergic rhinitis, the sneezing, runny nose and itchy eyes caused by allergies. Montelukast blocks leukotriene activity. Fexofenadine blocks histamine, targeting another molecule that causes these allergy symptoms.
Medically Reviewed by Dr. Ritu Budania
Last updated on: 13 October 2026 | 1:23 PM (IST)
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SANOFI
Dose Form
TABLET
Expiry
General Information
| Therapy | Anti-allergic |
| Composition | Montelukast(10.0 Mg)+Fexofenadine(120.0 Mg) Montelukast 10.0 Mg+Fexofenadine 120.0 Mg |
Montelukast 10.0 Mg+Fexofenadine 120.0 Mg

℞Alkem Laboratories Ltd
₹237.15 ₹206.32
₹20.63/Tablet
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*Offer applicable on orders above ₹1000About Allegra
Allegra-M tablet is a prescription anti-allergic medicine commonly used to treat the symptoms of allergic rhinitis, such as sneezing, runny nose, nasal congestion, itchy or watery eyes, and throat irritation. It is a combination medication containing montelukast and fexofenadine as active ingredients. Montelukast is a leukotriene receptor antagonist that blocks leukotrienes, chemicals responsible for airway swelling and inflammation. Fexofenadine is a modern, non-drowsy antihistamine that blocks the effects of histamine, another chemical that triggers allergic reactions. Together, these medicines provide effective relief from seasonal and year-round allergies.
Allegra-M tablets should be taken exactly as prescribed by your doctor, usually once daily. It can be taken with or without food, but taking it at the same time each day helps maintain steady levels in the body for better results. Do not increase or decrease the dose on your own, and complete the full course as advised, even if your symptoms improve earlier.
Some people may experience mild and temporary side effects while taking Allegra-M. These can include nausea, diarrhoea, vomiting, headache, skin rash, flu-like symptoms, dizziness, or drowsiness. If these effects persist or become bothersome, consult your doctor promptly. Because this medicine may cause sleepiness or reduce alertness in some individuals, avoid driving, operating heavy machinery, or engaging in tasks that require focus until you know how your body responds. It is also best to avoid alcohol while on this medication, as it can increase drowsiness and reduce alertness.
If you have a history of asthma, liver or kidney problems, or are pregnant or breastfeeding, inform your doctor before starting Allegra-M. With regular use under medical guidance, Allegra-M provides effective and long-lasting relief from allergy symptoms, improving breathing, sleep quality, and overall daily comfort.
Other medicines with the same combination of montelukast and fexofenadine include Montair Fx tablet, Telekast F tablet, Montek Fx tablet, Odimont Fx tablet and Glemont F tablet. Although the brand names may differ, their composition and therapeutic effect are generally the same.
Uses
Contraindications
Side effects
- Dizziness
- Headache
- Drowsiness
- Nausea
- Indigestion
- Stomach pain
- Tiredness
- Cough
- Throat infection
Precautions and Warnings
Alcohol
Avoid using alcohol along with this medicine, especially if you have any liver disease. Consuming alcohol while taking this medicine can worsen the side effects such as dizziness and drowsiness.
Pregnancy
This medicine can be used during pregnancy only if your doctor considers it essential.
Breastfeeding
This medicine should not be consumed while breastfeeding.
Driving
If you experience dizziness or drowsiness after taking this medicine, do not drive or operate any machinery.
Other General Warnings
- You have any blood disorder, abnormal blood count and swelling of blood vessels.
- You have any heart-related disorders, joint disorders or muscle weakness.
- You are suffering from any brain-related problems like aggression, anxiety, depression, abnormal dreams, lack of sleep, irritation, restlessness or suicidal thoughts.
- You have a known allergy to aspirin or other painkillers, or you have acute asthma.
- You have kidney or liver function problems or you are an elderly patient.
- You are experiencing rapid heartbeats, palpitations and excessive sweating.
Directions for use
- Take the Allegra M Tablet whole with a sufficient amount of water, as instructed by your doctor. Swallow the tablet whole with water; do not break, crush, or chew it.
Storage and disposal
- Store at room temperature, away from light and moisture.
- Keep it out of the reach of children and pets.
Quick tips
- Allergic rhinitis, also known as hay fever, is a condition caused by an allergen that causes inflammation or swelling inside the nose. It is a common condition that affects an individual's quality of life and, if left untreated, can contribute to asthma, otitis media, and sinusitis.
- Allegra-M is not meant for use in asthma attacks. It is important to consult your doctor before using it for any other condition other than what it is prescribed for. Self-medication should be avoided.
- While taking this medicine, you should rinse your nose regularly to clear the allergen from your nasal passage. As a precautionary measure, you should avoid exposure to a particular allergen you are aware of or suspect is triggering your allergy.
- Tell your doctor if you have a history or currently have any heart or blood vessel-related disorders or if you experience any mood or behaviour changes after taking this medicine.
- Antacids should be taken at least 2 hours before or after taking this medicine.
- Fruit juices like grapefruit, orange or apple juice should be avoided along with this medicine. Try to take it with water.
- If you experience dizziness or sleepiness after taking the Allegra M tablet, avoid driving, operating heavy machinery, or performing any tasks that require mental alertness.
Dosage
Overdose
Missed a dose
How Allegra works
Interactions
Drug interactions of Allegra with other medicine salt
Food interactions
Frequently asked questions
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References
- CDSCO [Internet]. Cdscoonline.gov.in. 2025 [cited 17th Nov 2025]
- Allegra-M Tablet [Internet]. Sanofi India Limited; 2024 Aug [cited 2026 Apr 21].
- MedlinePlus. Montelukast [Internet]. U.S. National Library of Medicine; 2025 [cited 17th Nov 2025]
- Drugs.com. Montelukast: Uses, Dosage, Side Effects & Warnings. 2025 [cited 17th Nov 2025]
- DrugBank. Montelukast. DrugBank; 2025 [cited 17th Nov 2025]
- MedlinePlus. Fexofenadine [Internet]. Bethesda (MD): U.S. National Library of Medicine; 2025 [cited 17th Nov 2025]
- Drugs.com. Fexofenadine: Uses, Dosage, Side Effects & Warnings. 2025 [cited 17th Nov 2025]
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