Fexofenadine is a specific selective and competitive histamine H1 receptor antagonist, with twice the affinity for H1 receptor than terfanadine. It blocks both early and late stages of allergy effectively.

The drug is used for relieving hay fever and allergy symptoms, such as sneezing and red, itchy, tearing eyes. It belongs to the class of antihistamines. It is available in both tablets and capsules form.

Working
The drug acts by blocking histamine, a substance in the human body responsible for causing allergic symptoms. It causes less drowsiness when compared to other antihistamines.

Dosage
Allergic Rhinitis: 120 mg once daily
Allergic Skin Conditions: 180 mg daily

Contra-Indications: Hypersensitivity

Side Effects
The drug has certain side effects, that can affect individuals in different ways. The following are some of the side effects, that are often associated with the drug:

• Headache
• Nausea
• Fatigue

The drug is not recommended for lactating women.

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