Is Dicloxacillin resistant to penicillinase?

Dicloxacillin is a semisynthetic penicillin that has been specifically designed to be resistant to the action of penicillinase, which is an enzyme produced by certain bacteria that can inactivate many penicillin antibiotics. This resistance allows dicloxacillin to effectively combat infections caused by penicillinase-producing staphylococci, which would typically be resistant to standard penicillins.

It is important to understand that this unique property makes dicloxacillin a valuable option in treating infections caused by these resistant strains, especially in cases of staphylococcal infections. By maintaining activity against bacteria that would ordinarily deactivate other penicillins, dicloxacillin holds a crucial role in antibiotic therapy for such infections.

Other options may suggest varying levels of resistance or indicate susceptibility, which does not accurately reflect dicloxacillin's established profile. Thus, recognizing its full resistance to penicillinase is essential for applying the appropriate treatment in clinical settings.