OBJECTIVE LIFE SCIENCE
SIGNALLING IMMUNOLOGY CANCER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Acrivastine is what kind of antihistamine?
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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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Explanation:
Detailed explanation-1: -Background. Acrivastine (ak” ri vas’ teen) is a second generation antihistamine (H1 receptor blocker) that is used to treat allergic symptoms associated with hay fever, seasonal allergies, urticaria, angioedema and atopic dermatitis.
Detailed explanation-2: -First-generation antihistamines block both histaminic and muscarinic receptors as well as passing the blood-brain barrier. Second-generation antihistamines mainly block histaminic receptors and do not pass the blood-brain barrier.
Detailed explanation-3: -Commonly used first-generation agents include diphenhydramine, hydroxyzine, doxepin, chlorpheniramine, and cyproheptadine.
There is 1 question to complete.