pt allergic to penicillin and have strept veridans infective endocarditis we give pt allergic to penicillin and have strept veridans infective endocarditis we give: 1- vancomycin 2- nafcillin 3- gentamycin 4- cefazolin. Share This: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook