VPT-0022
QUESTION
Drug which is not metabolized in liver is?
OPTIONS
(A) Phenobarbital
(B) Barbital
(C) Pentobarbital
(D) Secobarbital
ANSWER
(B) Barbital
EXPLANATION
Barbital is only minimally metabolized by the liver and is eliminated largely unchanged, unlike phenobarbital, pentobarbital, and secobarbital, which undergo more significant hepatic metabolism. Therefore, barbital is the correct choice.
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