Category- Allopathy
Medicine Highlights
| Uses | 1. To relieve sneezing and runny nose caused by allergy (hay fever). 2. To treat itching, mild allergic reactions like redness and swelling, skin rashes (Hives or urticaria) 3. To treat asthma symptoms |
| Common Side Effects | 1. Sleepiness or feeling drowsy 2. Tiredness or weakness 2. Dry mouth 3. Headache 4. Feeling dizzy |
| Additional Information | 1. It should not be given to children below 2 years 2. Do not take more than the prescribed dose. |
| Storage | 1. The medicine should be stored at room temperature 2. Keep away from sunlight and moisture 3. Keep away from the reach of children |
| How to Take This Medicine | Take this medication orally with a sip of water. |
BrandName Uses
BrandName is an anti-allergic medicine belonging to the category of antihistamines. It is useful for the following indications:
- Sneezing and running Nose
- Itching, redness, swelling, and skin rashes
- Asthma
Directions for use
- Take BrandName exactly as prescribed by your doctor, consistently at the same time each day.
- Do not stop taking BrandName without your doctor’s approval, even if you feel better.
- If you miss a dose, take it as soon as you remember, unless it’s close to your next dose-then skip the missed one.
BrandName side effects
More Common
- Sleepiness or feeling drowsy
- Tiredness or weakness
- Dry mouth
- Headache
- Feeling dizzy
Less common
- Upset stomach or nausea
- Sore throat
- Nosebleed
- Fast heartbeat
- Trouble sleeping
- Weight gain
- Allergic reaction (swelling, rash, itching)
How BrandName Works
This BrandName is a combination of fexofenadine and montelukast. Fexofenadine works by blocking histamine, the chemical that causes sneezing, itching, and runny nose in allergies. Montelukast stops another chemical called leukotriene, which causes swelling and tightening of airways. Together, they reduce allergy symptoms and make breathing easier in a simple, complementary way.
Safety Measures and Warning
Allergies/Hypersensitivity
Individuals with a known hypersensitivity or allergy to BrandName, or any ingredients in the formulation, should avoid the drug because it may trigger severe allergic reactions.
Pregnancy and Breastfeeding
BrandName crosses the placenta and can cause fetal abnormalities if taken during pregnancy, so if you are pregnant or planning to conceive, inform your doctor about it.
Kidney Patients
This medicine is removed through the kidneys, and weak kidneys can’t clear it properly, which can lead to side effects. Get a recommendation from a doctor before using it.
BrandName Interaction with other Medicines
Avoid taking BrandName with the following medicines, as it may increase or decrease the desired effect, or in worse cases, it could be fatal:
BrandName Interaction with Food Products
Avoid consuming caffeinated foods, as they can cause side effects like allergies and skin rashes. Alcohol and smoking can increase the medicine side effects occurring and worsen the patient’s conditions.
Storage
- The medicine should be stored at room temperature.
- Keep away from sunlight and moisture.
- Keep away from the reach of children.
BrandName Chemical Structure
IUPAC (International Union of Pure and Applied Chemistry)/ Chemical name
Montelukast- 2-[1-[[(1R)-1-[3-[(E)-2-(7-chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(2-hydroxypropan-2-yl)phenyl]propyl]sulfanylmethyl]cyclopropyl]acetic acid
Fexofinadine-2-[4-[1-hydroxy-4-[4-[hydroxy(diphenyl)methyl]piperidin-1-yl]butyl]phenyl]-2-methylpropanoic acid
Intake routine/cycle
Daily Dose
Take BrandName exactly as your doctor recommends. The dose may change based on your condition and how well you respond. Do not take more than prescribed without consulting your doctor.
Missed Dose
If you forget to take your medicine, take the medication as soon as you remember. If it’s nearly time for your next dose, skip the missed one and continue with your regular schedule. Always consult the doctor before making any changes to your dosage.
Overdose
It is not recommended to take more than 300 mg of the BrandName combination per day, as it can cause lower heart rate, slow breathing, and can even cause life-threatening complications. If someone you know is taking this medicine and exhibits any of these symptoms, seek medical attention immediately.
BrandName Summary
BrandName is a medicine used to relieve allergy symptoms like sneezing, runny or blocked nose, itchy or watery eyes, and skin rashes such as hives. It is commonly used for seasonal allergies, dust or pet allergies, and long-term allergy problems. Fexofenadine medicine works by blocking a chemical in the body called histamine, which causes allergy symptoms. Montelukast works by stopping leukotriene, which helps in reducing swelling and discomfort. Common side effects of BrandName include feeling sleepy, tired, or dizzy; having a dry mouth or having a headache. It is usually safe, but it should not be taken by children under 2 years, people with severe kidney problems, or anyone allergic to the medicine. Pregnant or breastfeeding women should only take it if the doctor says it is safe. Taking more than 300 mg of this medicine can cause serious side effects such as drowsiness, confusion, agitation, and dizziness.
FAQ’s
What are the uses of BrandName tablets?
BrandName is used to relieve allergy symptoms like sneezing, runny or blocked nose, itchy or watery eyes, and skin rashes such as hives. It helps you feel better if you have seasonal allergies, dust or pet allergies, or long-term allergy problems
What are the side effects of fexofenadine?
Fexofenadine is usually safe, but some people may feel sleepy, dizzy, or tired or have a dry mouth. Rarely, it can cause upset stomach, fast heartbeat, or allergic reactions like swelling and rash.
Can I take BrandName during pregnancy?
It is usually not recommended unless your doctor says it is safe. There is not enough information to know if it can harm the baby, so always ask your doctor before using it when pregnant.
What is the maximum dose of fexofenadine per day?
The usual maximum dose for adults is 120 mg once a day. Do not take more than this unless your doctor tells you to, as it can increase the risk of side effects like extreme drowsiness or confusion.
Reference
- Drugs.com. Montelukast: Uses, Dosage, Side Effects [Internet]. Auckland (NZ): Drugs.com; 2025 [cited 2026 Mar 13]. Available from.
- Mayo Clinic. Montelukast (oral route) [Internet]. Rochester (MN): Mayo Foundation for Medical Education and Research; 2025 [cited 2026 Mar 13]. Available from.
- PubChem [Internet]. Bethesda (MD): National Library of Medicine (US), National Center for Biotechnology Information; 2004-. PubChem Compound Summary for CID 5281040, Montelukast; [cited 2026 Mar. 13]. Available from.
- Drugs.com. Fexofenadine: Uses, Dosage, Side Effects & Warnings [Internet]. Drugs.com; 2025 Jan 21 [cited 2026 Mar 13]. Available from.
- Chabot S, Wessell A. Fexofenadine (Allegra): Uses, Side Effects, Interactions, Pictures, Warnings & Dosing [Internet]. WebMD; 2024 Dec 05 [cited 2026 Mar 13]. Available from.
- PubChem [Internet]. Bethesda (MD): National Library of Medicine (US), National Center for Biotechnology Information; 2004-. PubChem Compound Summary for CID 3348, Fexofenadine; [cited 2026 Mar. 13]. Available from.
Authors
Siva Krishna Adithya Bhumireddy completed a Bachelor of Pharmacy from GIET School of Pharmacy, affiliated with Andhra University, and from his 3rd year of graduation, he was working as a freelance medical and publication writer. Having expertise in systematic reviews and clinical research. With his keen interest and skills in research and documentation practices, he also reviewed more than 150 manuscripts from international journals like Elsevier, Springer Nature, and Sage Journals, and all the manuscripts were indexed and appeared in PubMed, Scopus, and Web of Science databases, and he received honorary recognition letters and certificates from all of them. Siva Krishna Adithya also published a few systematic, narrative reviews and a few chapters of international expertise.