Fexofenadine

Overview

What is Fexofenadine?   

Fexofenadine is newer generation antihistamine used to combat the symptoms associated with allergies. It works by blocking histamine, a substance in the body that causes allergic symptoms.

Global Name

• Generic name:  Fexofenadine
• Brand name: Allegra

Usage

What is Fexofenadine used for? 

Fexofenadine is primarily used to treat: 

• Seasonal allergic rhinitis (hay fever) 

• Chronic idiopathic urticaria (hives) 

• Acute food allergies 

• Alleviation of allergy symptoms such as sneezing, itching, watery eyes, and runny nose. 

How do you use Fexofenadine? 

Availability: 
Fexofenadine is available in tablet form, as well as in oral suspension for those who have difficulty swallowing pills. 

Dosage information: 

• Adults and Children 12 years and older: 60 mg twice daily or 180 mg once daily. 

• Children 6 to 11 years: 30 mg twice daily. 

• Elderlies: No dosage adjustment necessary unless there is kidney impairment.

Are the following suitable to take the drug: Children, adults, elderlies? 

• Children: Suitable for children 6 years and older. 

• Adults: Suitable for adults. 

• Elderlies: Suitable, with monitoring for kidney function. 

Is there anyone who can’t take Fexofenadine? 

• Children: Not recommended for children under 6 years of age for the tablet form or under 2 years for the oral suspension. 

• Adults: Generally safe for adults. 

• Elderlies: Use with caution if there is known kidney impairment. 

• Pregnancy: Should be used only if clearly needed and directed by a healthcare provider. 

• Lactation: Consult a healthcare provider before use. 

Allergies: Rare but possible reactions include rash, itching, or other signs of an allergic reaction. 

Warnings and precautions: Do not take with fruit juices, especially grapefruit, as they might reduce the effectiveness of the medication. Taking Fexofenadine with water is recommended. 

Interactions and contraindications of the drug: 

 Avoid taking with aluminum or magnesium-containing antacids as they can decrease the absorption of Fexofenadine. 

Side Effects

Common side effects include: 

• Headache 

• Dizziness 

• Nausea 

• Drowsiness 

Pharmacist Tips

• Storage information: Store at room temperature away from moisture and heat. 

• Handling instructions: Handle tablets with dry hands and take immediately after removing from the package. 

Availability

Where is Fexofenadine available in Hong Kong?

Fexofenadine is a prescription medication that can be prescribed by healthcare providers.

FAQs

What makes Fexofenadine different from other antihistamines?  

Fexofenadine is less likely to cause drowsiness compared to other antihistamines. 

Can I take Fexofenadine daily? 

Yes, Fexofenadine can be taken daily during allergy season or year-round for chronic conditions as directed by a medical professional. 

Does Fexofenadine interact with other medications?

Yes, especially with aluminum or magnesium-containing antacids. Consult your healthcare provider for more details. 

How quickly does Fexofenadine work?