12th Class Chemistry Sample Paper Chemistry Sample Test Paper-10

  • question_answer
      What is the advantage of using antihistamines over antacids in the treatment of acidity?                               [2]

    Answer:

      Antihistamines do not affect the secretion of acid in stomach. Antacids work on different receptors.      [1] Synthetic drugs (dimetapp and sedate) act as antihistamines. They interfere with natural action of histamine for binding sites of receptor where histamine exerts its effect.                                                                                                                                                                       [1]


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