<prompt> Which of the following drug acts against PseudomonasPiperacillinMethicillinNafcillinCloxacillin  <response>: Ans. is a i.e., Piperacillin Penicillins effective against PseudomonasPiperacillinMezlocillinTicarcillinCarbenicillinList of other Antipseudomonal have already been given. May 2003, pharma Q. No. 53Methicillin, Nafcillin and cloxacillin are penicillinase resistant penicillins 