Question: are cephalosporins time or concentration dependent?
Answer: Time-Dependent Killing: For instance, certain antibiotics, like beta-lactams (penicillins, cephalosporins, carbapenems, monobactams), clindamycin, macrolides (erythromycin, clarithromycin), oxazolidinones (linezolid), can be effective because of the extensive amount of time the antibiotic binds to the microorganism.