<prompt> Which of the following penicillins is given by oral route?Benzyl penicillinBenzathine penicillinProcaine penicillinPenicillin V Phenoxymethyl penicillin  <response>: Oral Administration of Penicillin G and VThe virtue of penicillin V in comparison with penicillin G is that it is more stable in an acidic medium and therefore is better absorbed from the GI tract, yielding plasma concentrations two to five times those provided by penicillin G. Thus, penicillin V is generally preferred for oral administration. Absorption is rapid, and maximal concentrations in blood are attained in 3060 min. Ingestion of food may interfere with enteric absorption of all penicillins. Thus, oral penicillins should generally be administered at least 30 min before a meal or 2 hr after.Reference: Goodman Gilmans THE PHARMACOLOGICAL BASIS OF THERAPEUTICS THIRTEENTH EDITIONPage no 1026 