Medication Summary
The goal of pharmacotherapy is to reduce morbidity and to prevent complications. Drugs described below are antibiotics commonly used to treat preseptal cellulitis.
Antibiotics
Class Summary
Antimicrobial therapy must be comprehensive and should cover all likely pathogens in the context of the clinical setting.
Amoxicillin and clavulanate (Augmentin)
Third-generation aminopenicillin. Combined with the beta-lactam, clavulanic acid, is less susceptible to degradation by beta-lactamases produced by microorganisms.
Ceftriaxone (Rocephin)
Third-generation cephalosporin with broad-spectrum, gram-negative activity; lower efficacy against gram-positive organisms; higher efficacy against resistant organisms. Arrests bacterial growth by binding to one or more penicillin-binding proteins.
Clindamycin (Cleocin)
Semisynthetic antibiotic produced by a 7(S)-chloro-substitution of the 7(R)-hydroxyl group of the parent compound lincomycin.
Nafcillin (Unipen)
For suspected penicillin G-resistant streptococcal or staphylococcal infections. Second-generation penicillinase penicillin.
Use parenteral therapy initially in severe infections. Change to oral therapy as condition warrants.
Due to thrombophlebitis, particularly in elderly persons, administer parenterally only for short term (1-2 d); change to oral route as clinically indicated.
Cephalexin (Keflex, Biocef)
First-generation cephalosporin arrests bacterial growth by inhibiting bacterial cell wall synthesis. Bactericidal activity against rapidly growing organisms. Primary activity against skin flora; used for skin infections or prophylaxis in minor procedures.
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