KROK 1 2011 – Question 175 · KROK (Medicine) · Pharmacology

A female patient was administered loratadine for allergic cheilitis treatment. What is the mechanism of the drug’s action?

  1. A. It inhibits the activity of Na,K-ATPase
  2. B. It inhibits the activity of choline esterase
  3. C. It stimulates the activity of monoamine oxidase
  4. D. It blocks the adrenergic receptors
  5. E. It blocks the activity of H1 histamine receptors
Hint

Think about which mediator released from mast cells drives swelling and itching in allergy, and what a drug of this class does at its target.

The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.

Create a free account Log in

More questions on Pharmacology