Pseudoephedrine Is a Vasoconstriction Drug That Is Commonly Used in Cold

Multiple Choice

Pseudoephedrine is a vasoconstriction drug that is commonly used in cold medications to alleviate nasal congestion.Its mechanism of action most likely involves

A) contraction of arteriole muscle cells.
B) relaxation of arteriole muscle cells.
C) swelling of red blood cells.
D) closing of the valves that lead from capillaries to arterioles.
E) formation of additional capillaries when needed.