<prompt> TRUE statement about penicillin G is:It is administered orallyIt has a wide spectrumIt can be used for rat bite feverCo-administration of probenecid decreases its duration of action  <response>: Ans. C It can be used for rat bite feverRef: KDT 8the p768-770Penicillin GIt is acid labile, thus not effective orally.Penicillin G has short duration of action. Probenecid inhibits tubular secretion and prolongs its duration of action.It has narrow antibacterial spectrum, mainly for gram positive bacteria.Penicillin G is drug of choice for infections caused by Treponema like syphilis T. pallidum and Rat bite fever Spirillum minus. 