<prompt> Drug, NOT metabolised by liver is :Penicillin GPhenytoinErythromycinCimetidine  <response>: Ans. is a Penicillin G Penicillin G is metalized mainly in kidneyApproximately 10 of the drug is eliminated by glomerular filtration and 90 by tubular secretionRest of the drugs given in the question erythromycin, cimetidine and phenytoin are metabolized in the liver. 