TOPICS: Cephalosporins, beta lactams, pbp, peptidoglycan, cell lysis, beta lactamases, gram negative bacteria, vitamin k, disulfiram reaction, aminoglycosides, nephrotoxicity, hypersensitivity, cephalexin, 1st generation cephalosporins, cefazolin, proteus mirabilis, e coli, klebsiella, strep, staph, 2nd generation cephalosporins, enterobacter, serratia marcescens, haemophilus influenzae, neisseria, cefaclor, cefoxitin, cefotetan, cefuroxime, 3rd generation cephalosporins, neisseria gonorrhea, ceftriaxone, blood brain barrier, borrelia burgdorferi, lyme disease, strep pneumonia, meningitis, cefotaxime, cefpodoxime, ceftazidime, pseudomonas, cefepime, 4th generation cephalosporins, ceftaroline, 5th generation cephalosporins, mrsa, enterococcus