How does the onset of action of ester local anesthetics differ from that of amide local anesthetics?
A. Ester local anesthetics have the same duration of action as amide local anesthetics.
B. Ester local anesthetics have a shorter duration of action than amide local anesthetics.
C. Ester local anesthetics have a longer duration of action due to metabolism in the liver.
D. None of the above are true.
Answer: B
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