HYPERSENSITIVITY
CLASSICAL ALTERNATE AND LECTIN PATHWAYS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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first generation
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second generation
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Either A or B
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None of the above
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Detailed explanation-1: -Fexofenadine is a metabolite of terfenadine and is a second-generation antihistamine. It is FDA approved to treat seasonal allergic rhinitis and chronic idiopathic urticaria. Fexofenadine is a medication used to manage and treat allergic rhinitis and chronic urticaria.
Detailed explanation-2: -They can be divided into two categories: first-generation antihistamines and second-and third-generation antihistamines. A common first-generation antihistamine is Benadryl. Second-and third-generation antihistamines include Claritin and Allegra.
Detailed explanation-3: -Fexofenadine, the active metabolite of terfenadine, is a second-generation, highly selective, peripheral histamine H1-receptor antagonist without cardiac effects.
Detailed explanation-4: -Loratadine, cetirizine, and fexofenadine are the most commonly prescribed second-generation antihistamines. Many tests have been conducted to assess the central effects of these three drugs.