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Allegra-M Tablet is a combination medicine used in the treatment of allergy symptoms such as runny nose, stuffy nose, sneezing, watery eyes, and congestion or stuffiness.

Written By Dr. Syeda Aafia, MBA, BDS,
Reviewed By Dr. Rajeev Sharma, MBA, MBBS,
Last updated on 05 May 2026 | 05:29 PM (IST)
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General Information

Contains

Montelukast (10mg)+ Fexofenadine (120mg)

Marketer

Sanofi India Ltd

Storage

Store below 30°C
The content is shown in English
Allegra-M Tablet image
Allegra-M Tablet image
Allegra-M Tablet image
Allegra-M Tablet image
Allegra-M Tablet image
Allegra-M Tablet image
Allegra-M Tablet image

Product introduction

Allegra-M Tablet is taken with or without food in a dose and duration as advised by the doctor. The dose you are given will depend on your condition and how you respond to the medicine. You should keep taking this medicine for as long as your doctor recommends. If you stop treatment too early, your symptoms may come back, and your condition may worsen. Let your healthcare team know about all other medications you are taking, as some may affect, or be affected by this medicine.


The most common side effects include nausea, diarrhea, vomiting, skin rash, flu-like symptoms, and headache. Most of these are temporary and usually resolve with time. Contact your doctor straight away if you are at all concerned about any of these side effects. This medicine may cause dizziness and sleepiness, so do not drive or do anything that requires mental focus until you know how this medicine affects you. Avoid drinking alcohol while taking this medicine, as it can worsen your sleepiness.


Never support self-medication or recommend your medicine to another person. It is beneficial to have plenty of fluids while taking this medication. Before you start taking this medicine, it is important to inform your doctor if you are suffering from liver or kidney disease. You should also tell your doctor if you are pregnant, planning pregnancy, or breastfeeding.

Uses of Allegra-M Tablet

  • Treatment of Sneezing and runny nose due to allergies

Benefits of Allegra-M Tablet

Treatment of Sneezing and runny nose due to allergies
Allegra-M Tablet is a combination medicine that provides relief from symptoms such as blocked or runny nose, sneezing and itchy or watery eyes. This will make it easier for you to go about your daily activities. It rarely has any serious side effects and you may only need to take it on days you have symptoms. If you are taking it to prevent getting symptoms you should use it regularly to get the most benefit.

Side effects of Allegra-M Tablet

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them
Common side effects of Allegra-M
  • Nausea
  • Diarrhea
  • Vomiting
  • Headache
  • Drowsiness
  • Dizziness
  • Upper respiratory tract infection
  • Increased transaminase level in blood
  • Fever
  • Skin rash

How to use Allegra-M Tablet

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Allegra-M Tablet may be taken with or without food.

How Allegra-M Tablet works

Montelukast is a leukotriene antagonist. It works by blocking the action of a chemical messenger called leukotriene. This reduces inflammation (swelling) in the airways and nose and improves symptoms. Fexofenadine is an antiallergic which blocks the action of another chemical messenger (histamine) responsible for runny nose, watery eyes, and sneezing.

All substitutes for Allegra-M Tablet

For information purposes only. Consult a doctor before taking any medicine.

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Montas-FX Tablet

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Montemac-FX Tablet

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Histafree-M Tablet

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Quick tips

  • You have been prescribed Allegra-M Tablet to help relieve symptoms of allergy, such as a runny nose, sneezing, watery eyes, and cough.
  • Be cautiouswhile driving or doing anything that requires concentration, as Allegra-M Tablet can cause dizziness and sleepiness.
  • Do not drink alcohol while taking Allegra-M Tablet, as it may cause increased sleepiness.
  • Stop taking Allegra-M Tablet at least three days before taking an allergy test, as it can affect the test results.

Safety advice

Alcohol

Alcohol

CONSULT YOUR DOCTOR
It is not known whether it is safe to consume alcohol with Allegra-M Tablet. Please consult your doctor.
Pregnancy

Pregnancy

CONSULT YOUR DOCTOR
The safety of Allegra-M Tablet during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.
Breast feeding

Breast feeding

CONSULT YOUR DOCTOR
Allegra-M Tablet may be unsafe to use during breastfeeding. Limited human data suggests that the drug may pass into the breastmilk and harm the baby. It should be used only if the expected benefit outweighs the potential risk. Please consult your doctor.
Driving

Driving

SAFE
Allegra-M Tablet does not usually affect your ability to drive.
Kidney

Kidney

CAUTION
Allegra-M Tablet should be used with caution in patients with kidney disease. Dose adjustment may be needed.
Liver

Liver

SAFE IF PRESCRIBED
Allegra-M Tablet is safe to use in patients with liver disease. No dose adjustment is recommended.

Frequently asked questions

Allegra-M Tablet is a medicine is used to treat allergy symptoms like a runny nose, sneeze, and cough. It works by lowering the chemicals in the body that cause allergy symptoms.
No, Allegra-M Tablet should be continued as advised by the doctor. If any problems are experienced due to Allegra-M Tablet, consult the doctor for re-evaluation.
Yes, the use of Allegra-M Tablet can cause dizziness (feeling faint, weak, unsteady or lightheaded) in some patients. If you feel dizzy, or lightheaded, it is better to rest for some time and resume once you feel better. Do not drive or use any machines.
Do not take it with any fruit juices (such as apple, orange, or grapefruit) as they might make the drug less effective. Avoid drinking alcohol while taking Allegra-M Tablet, as it might increase the severity of drowsiness or sleepiness caused by Allegra-M Tablet.
No, taking more of this medicine will not make it more effective; it can lead to increased side effects. If the symptoms are getting severe, please consult the doctor for re-evaluation.
Keep this medicine in the container or the pack it came in, tightly closed. Store it according to the instructions mentioned on the pack or label. Dispose of the unused medicine. Make sure it is not consumed by pets, children, or other people.

Fact Box

Habit Forming

No

Therapeutic Class

RESPIRATORY

References

  1. Montelukast sodium [EMC SmPC]. South Ruislip, Middlesex: Aurobindo Pharma - Milpharm Ltd.; 2018. [Accessed 19 Apr. 2019] (online) Available from:
  2. Montelukast sodium [Prescribing Information]. Whitehouse Station, New Jersey: Merck & Co., Inc.; 2014. [Accessed 19 Apr. 2019] (online) Available from:
  3. Fexofenadine hydrochloride [EMC SmPC]. Beverley: Dr. Reddy's Laboratories (UK) Ltd.; 2018. [Accessed 19 Apr. 2019] (online) Available from:
  4. Fexofenadine Hydrochloride and Montelukast [Prescribing Information]. Goa, India: Sanofi India Limited; 2024.
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User feedback

Once A Day
100%
Others
74%
Allergic conditions
19%
Asthma
6%
Average
44%
Excellent
38%
Poor
18%
No Side Effect
67%
Vomiting
5%
Flu-like symptoms
5%
Skin rash
5%
Dizziness
4%
With food
64%
With or without food
29%
Empty stomach
7%
Average
44%
Expensive
40%
Not Expensive
15%
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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Sanofi India Ltd
Address: Sanofi House, CTS No.117-B, L&T Business Park, Saki Vihar Road, Powai, Mumbai 400072

Vendor Details

Country of origin: India
A licensed vendor partner from your nearest location will deliver Allegra-M Tablet. Once the pharmacy accepts your order, the details of the pharmacy will be shared with you. Acceptance of your order is based on the validity of your doctor's â„ž and the availability of this medicine.

In case of any issues, contact us

Email ID: [email protected]
Phone Number: 0124-4166666
Address: 5th Floor Tower - B of the Presidency Building, 46/4 Mehrauli Gurgaon Road, Sector 14, Gurugram, Haryana-122001, India

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