Fexofenadine
Fexofenadine is a less-sedating antihistamine used for allergic rhinitis and hives. Listed uses include Seasonal Allergic Rhinitis and Urticaria.
Key points
- It can still cause drowsiness in some people.
- Fruit juice and some antacids can reduce absorption.
- Breathing difficulty or throat swelling is an emergency.
Select a listed product and pack to order online. Ask your doctor or pharmacist whether it suits you and what monitoring it needs.
Important safety checks
Kidney function, pregnancy and product-specific interactions require review.
When to seek urgent care
Seek urgent help for breathing difficulty, throat swelling, fainting or a rapidly worsening widespread reaction.
Further reading
What is fexofenadine used for?
Fexofenadine is a less-sedating antihistamine used for allergic rhinitis, including hay fever, and for hives (urticaria).
How does fexofenadine work?
Fexofenadine is a selective H1-receptor antagonist. It competes with histamine at H1-receptors to block the allergic response, with less sedation than older antihistamines.
Which fexofenadine product can I order on SGMeds?
The fexofenadine product on SGMeds is Allegra, and its page gives the strengths and pack sizes.
What is fexofenadine called in other countries?
In other countries, fexofenadine is also sold as Telfast. Brand names vary between countries, so compare products by their active ingredient.
How long does fexofenadine take to work?
Fexofenadine starts working in about 1 hour and its effect lasts around 24 hours.
What are the side effects of fexofenadine?
Common side effects include headache, drowsiness and nausea. Dizziness and fatigue may also occur. Speak to your doctor or pharmacist if you are concerned.
What can interact with fexofenadine?
Grapefruit and other fruit juices, and antacids containing aluminium, can reduce how much fexofenadine you absorb. Ask your doctor or pharmacist about your own medicines and drinks.
Who should not take fexofenadine?
Do not take it if you have had an allergic reaction to fexofenadine. If you have kidney problems or are pregnant, ask your doctor or pharmacist before you use it.
How much does fexofenadine cost in Singapore?
The product on this page shows a price for each strength and pack size in Singapore dollars, converted from US dollars, so the exchange rate can change the final amount. Larger packs usually cost less per tablet.
Payment and prices →Can I buy fexofenadine over the counter in Singapore?
Yes, online. SGMeds does not ask for a prescription to order fexofenadine: we place the order with our pharmacy partner, which prepares it and arranges delivery on your behalf.
Ordering without a prescription →Do you deliver fexofenadine to Singapore?
Yes. We deliver to Singapore and Malaysia. Express shipping is tracked and takes up to 1 week, and Regular shipping takes up to 3 weeks.
How ordering works →Related articles
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