sodium;N-[(2S,5R,6R)-2-carboxy-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptan-6-yl]-3-(2,6-dichlorophenyl)-5-methyl-1,2-oxazole-4-carboximidate
Dicloxacillin Sodium is the sodium salt form of dicloxacillin, a broad-spectrum, semi-synthetic beta-lactam with bactericidal and beta-lactamase resistant activity. Dicloxacillin sodium binds to penicillin binding proteins (PBP) located on the inner membrane of the bacterial cell wall.  It also inhibits the cross-linkage of peptidoglycan, a critical component of bacterial cell walls. This leads to the inhibition of bacterial cell wall synthesis and eventually causes cell lysis.