Phenylephrine Reduces Secretion of Mucus and Causes Blood Vessel Constriction

question 28

Multiple Choice

Phenylephrine reduces secretion of mucus and causes blood vessel constriction, and therefore alleviates nasal congestion because it

• A) is an agonist of epinephrine
• B) is an antagonist of epinephrine
• C) competes with epinephrine
• D) it is a blocker of the receptor

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