Which one of the following statement best describes the mechanism of action of antihistaminic drugs?
A) They interfere with the synthesis of histamine in the body
B) They form inactive complexes with histamine
C) They stimulate the m etabolism of endogenous histamine
D) They blok the receptor sites on which histamine acts***
E) They are alpha- adrenergic blockers.
A) They interfere with the synthesis of histamine in the body
B) They form inactive complexes with histamine
C) They stimulate the m etabolism of endogenous histamine
D) They blok the receptor sites on which histamine acts***
E) They are alpha- adrenergic blockers.
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pharmac