Antihistamines are used to treat symptoms of allergic reactions. Antihistamines inhibit the action of histamine. Histamine is a chemical used by the immune system to help protect the body's cells from infection. Some antihistamines are found to be sedating and classified under first-generation antihistamines. Second-and-third generation antihistamines are less likely to cause drowsiness.
This Quiz has 10 questions.
1. Antihistamines are drugs that are useful in the treatment of:1/10
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