In the 1920s, ephedrine replaced epinephrine as a treatment for asthma because
a. ephedrine remains stable in light and air, whereas epinephrine does not.
b. ephedrine can be taken in pill form, whereas epinephrine must be injected.
c. ephedrine has a longer duration of action compared to epinephrine.
d. ephedrine is less toxic than epinephrine.
e. All of the above constitute reasons as to why ephedrine became the favored treatment for asthma.
Answer: E
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Fill in the blank with correct word.
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