Physical form sodium carbonate: approx. 5% Application Cefamandole is used to study the effects of expression and inhibition of PBP 2A and other penicillin-binding proteins (PDPs) on bacterial cell wall mucopeptide synthesis. Biochem/physiol Actions Cefamandole nafate inhibits bacterial cell wall synthesis by inhibiting PBP 2A and other penicillin-binding proteins. Cefamandole nafate has been shown to be rapidly converted to cefamandolein bacteriological media 1.