• Card 12 / 29: Which of the following is TRUE regarding Propranolol?
    A) selective B1 adrenergic antagonist
    B) increases HR and cardiac contractility
    C) limited use because of B2 blockade causing bronchoconstriction
    D) increases sympathetic stimulaiton
    E) blocks norepinephrine which decrease BP

    Answer:
    C) limited use because of B2 blockade causing bronchoconstriction

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Explanation:

Propranolol is nonselective beta adrenergic antagonist with equal affinity for B1 and B2. It has antiarrhythmic activity from decreased sympathetic action. It blocks epinephrine but not norepinephrine.

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Dr. Amberg Pharm quiz 2

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