<prompt> Which of following is are prodrugs?ProguanilAzathioprineProntosilAll the above  <response>: Ans. is d i.e., All the above Pro drug Few drugs are inactive as such and need conversion in the body to one or more active metabolites. Such a drug is called a prodrug.ProdrugLevodopaOxcarbazepineMercaptopurineBenorilateEnalaprilPrednisoneFluorouracilProguanila - MethyldopaBacampicillinSulindacZidovudinChloralhydrateSulfasalazineAzathioprineTerfenadineDipivefrineCyclophosphamideCortisoneProntosil 