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A semisynthetic penicillin, C21H22N2O5S, that is resistant to penicillinase, used in the form of its sodium salt primarily to treat infections caused by penicillinase-producing staphylococcus bacteria.

[naf- (shortening and alteration of naphthalene) + (peni)cillin.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.nafcillin - a penicillinase-resistant form of penicillin (trade name Nafcil) used (usually in the form of its sodium salt) to treat infections caused by penicillin-resistant strains of staphylococci
penicillinase-resistant antibiotic - a form of penicillin that is not rendered inactive by penicillinase
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n nafcilina
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
IV nafcillin or oxacillin may be used with pediatric dosing of 150 mg/kg daily divided every 6 hours for methicillin-sensitive Staphylococcus aureus (MSSA).
[12] Rifampicin, barbiturates, carbamazepine, griseofulvin, aminoglutethimide, nafcillin and dicloxacillin are powerful inducers of warfarin metabolism and decrease its effectiveness.
The MIPs displayed a lower binding capacity to the AMP structural analogues of penicillin G, nafcillin, and sulbactam.
His deep-seated abscess was drained and cultured, which subsequently grew Staphylococcus lugdunensis sensitive to methicillin, so the patient was started on intravenous Nafcillin. A skin biopsy taken from the back was sent for histopathology and showed fibroadipose tissue and skeletal muscle with focal acute and chronic inflammation with granulation tissue (Figure 3).
Antibiotic therapy was narrowed down to Intravenous Nafcillin on day two of admission.
She developed an acute thigh abscess at an insulin injection site that resolved after surgical debridement and intravenous nafcillin followed by oral cephalexin after discharge from the hospital.
lactam, macrolide, flouroquinolones, penicillin, nafcillin, and dihydro-streptomycin have been found to be effective in reducing the load of mastitic pathogens (Koop et al., 2016).
Zhang, Preparation and Application of Core-Shell Structural Carbon Nanotubes-Molecularly Imprinted Composite Material for Determination of Nafcillin in Egg Samples, Chinese J.
aureus is best treated with a semisynthetic penicillin, nafcillin, oxacillin, flucloxacillin or cephalosporin (Cefazolin).
The standard of lincomycin, from the lincosamides family, as well as the standards from the macrolides (clindamycin, erythromycin, spiramycin, tilmicosin, and tylosin) and [beta]-lactams (cefazolin, cloxacillin, dicloxacillin, oxacillin, nafcillin, penicillin G, and penicillin V) families were purchased from Sigma Chemical Co.