Antihistamines MCQ

Test your knowledge with important Antihistamines MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Antihistamines MCQs on Bissoy. Bissoy App

• Antihistamines are only for H2 receptor antagonists.
  ক

  True

  খ

  False
• Synthesis of histamine needs the enzyme histidine decarboxylase.
  ক

  True

  খ

  False
• Which of the following drug is of Piperazine class?
  ক

  Mepyramine

  খ

  Diphenhydramine

  গ

  Cyclizine

  ঘ

  Chlorphenamine
• Which of the following drug is of Alkylamine class?
  ক

  Mepyramine

  খ

  Diphenhydramine

  গ

  Cyclizine

  ঘ

  Chlorphenamine
• Which of the following drug is of Ethanolamine class?
  ক

  Mepyramine

  খ

  Diphenhydramine

  গ

  Cyclizine

  ঘ

  Chlorphenamine
• Which of the following drug is of Ethylenediamine class?
  ক

  Mepyramine

  খ

  Diphenhydramine

  গ

  Cyclizine

  ঘ

  Chlorphenamine
• Which of the following drug are over the counter drug?
  ক

  Loratidine

  খ

  Terfenadine

  গ

  Desloratidine

  ঘ

  Fexofenadine
• What are the characteristics of 2nd generation h1 receptor antagonists?
  ক

  Selective for peripheral H1 receptors

  খ

  Opposed to CNS H1 receptors

  গ

  Selective for peripheral H1 receptors and opposed to CNS receptors

  ঘ

  Selective to H1 receptors of CNS
• Which class of drugs has these common structural features?
  ক

  1st generation antihistamines

  খ

  2nd generation antihistamines

  গ

  3rd generation antihistamines

  ঘ

  4th generation antihistamines
• Which of the following is the first antihistamine?
  ক

  Piperoxan

  খ

  Ethylenediamine

  গ

  Alkylamines

  ঘ

  Tricyclics
• What causes the side effects of H1 receptor antihistamines?
  ক

  Lack of selectivity of the H1 receptor

  খ

  Lack of selectivity anti-cholinergic activity

  গ

  Due to CNS depression

  ঘ

  Lack of selectivity of H1 receptor, anticholinergic effect, and CNS depression
• Which of the following histamine receptor increases the release of gastric acid?
  ক

  H1 receptor

  খ

  H2 receptor

  গ

  H3 receptor

  ঘ

  H4 receptor
• Which of the following histamine receptor increase permeability during inflammation reaction?
  ক

  H1 receptor

  খ

  H2 receptor

  গ

  H3 receptor

  ঘ

  H4 receptor
• Which of the following enzyme is essential for the conversion of histidine to histamine?
  ক

  Histidine amylase

  খ

  Histidine hydrolase

  গ

  Histidine decarboxylase

  ঘ

  Histidine phosphorylase
• If one of the parents has allergy how much percentage probability is there that the child will also get allergy?
  ক

  20%

  খ

  48%

  গ

  70%

  ঘ

  100%
• If both the parent has allergy how much percentage chance is there that the child will also get an allergy?
  ক

  20%

  খ

  48%

  গ

  70%

  ঘ

  100%
• Which class of antibody is associated with an allergic reaction?
  ক

  IgE

  খ

  IgA

  গ

  IgM

  ঘ

  IgG
• Antihistamine drugs are antagonists for which receptor?
  ক

  H1 receptor antagonist

  খ

  H2 receptor antagonist

  গ

  H3 receptor antagonist

  ঘ

  H4 receptor antagonist