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Fexofenadine: uses, side effects & brands
Fexofenadine is a non-drowsy antihistamine for hay fever and hives. It belongs to the Antihistamine (allergy) group. Antihistamines relieve allergy symptoms such as sneezing, itching, runny nose and hives.
Drug type — dosing is set by your doctor
| Measure | Range |
|---|---|
| Drug class | Antihistamine (allergy) |
| Type | Prescription |
| Dose | Individual — ask your doctor or pharmacist |
What it is used for
- Hay fever and allergic rhinitis (sneezing, runny nose, itchy eyes)
- Chronic hives (urticaria)
- Seasonal and dust allergies
Common brand names
- India: Allegra, Fexo, Histafree
- Worldwide: Allegra
Common side effects
- Headache
- Drowsiness (uncommon)
- Nausea or dizziness
Before taking it — precautions
- Avoid taking with fruit juices (orange, grapefruit, apple) — they reduce absorption
- Keep it apart from antacids containing aluminium or magnesium
- Tell your doctor about kidney problems, pregnancy or breastfeeding
When to see a doctor urgently
- Severe allergy — swelling or breathing difficulty (urgent)
- Fast or irregular heartbeat
- Hives with fever, joint pain or bruising — see a doctor
Not a prescription — no dose shown. The right dose of fexofenadine depends on age, weight, kidney/liver function and the condition, so MedDroid does not show a dose here. Always get your dose from a doctor or pharmacist and the leaflet inside the pack. General educational information only.
Frequently asked questions
Will fexofenadine make me sleepy?
It is one of the least sedating antihistamines, so most people stay alert.
Why avoid fruit juice?
Fruit juices like orange or grapefruit can reduce how much fexofenadine is absorbed. Take it with water.
Can I take it every day?
Many people take it daily during allergy season or for chronic hives, as advised by a doctor.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.