Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A semisynthetic penicillin effective against penicillin-resistant infections, especially those of staphylococci.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A narrow-spectrum beta-lactam antibiotic related to penicillin

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a form of penicillin resistant to penicillinase and effective against penicillin-resistant staphylococci

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

ox(o)- + a(zole) + (peni)cillin.

Examples

  • Beta-lactam antibiotics include methicillin and other more common antibiotics such as oxacillin, penicillin and amoxicillin.

    journal-news.com - News

  • Methicillin-resistant S. aureus (MRSA) occurs when the bacteria become resistant to the antibiotic, methicillin and other more common antibiotics such as oxacillin, penicillin and amoxicillin, making it more difficult to treat.

    Marler Blog

  • MRSA is resistant to certain antibiotics, including methicillin and other more common antibiotics such as oxacillin, penicillin and amoxicillin.

    Click Orlando - Local News

  • The NDA dossier includes data from more than 2,100 individuals and in vitro activity data on oritavancin against more than 9,000 clinical bacterial isolates, including a broad range of gram-positive strains resistant to commonly used antibiotics such as oxacillin, methicillin, vancomycin, daptomycin, and linezolid.

    Digital50.com Digital 50 Daily Industry News RSS Feed

  • In addition to methicillin, which has passed out of common use, the semi-synthetics include oxacillin used in laboratories to test for methicillin resistance, nafcillin, cloxacillin, dicloxacillin, and flucloxacillin.

    SUPERBUG

  • Methicillin is a successor to and subset of penicillin but as it is toxic to humans and unstable compared to oxacillin, then the latter is the more preferred treatment.

    [mrsa and harborview] how executive decisions threaten lives

  • - Cloxacillin, oxacillin and dicloxacillin are equivalent products: same indications and same doses, except for dicloxacillin (25 mg/kg/day).

    Chapter 4

  • Say someone got infected with one of these, and was treated with oxacillin because it is MSSA, and it developed resistance and became MRSA.

    Ars Technica

  • The antibiotics to which the staph was resistant included: penicillin and ampicillin; erythromycin; tetracycline; oxacillin, the more modern form of the drug methicillin; the drug combination quinupristin/dalfopristin, known as Synercid; the fluoroquinolones levofloxacin (Levaquin) and ciprofloxacin (Cipro); and the last-resort drugs for very serious staph infections vancomycin and daptomycin.

    Ars Technica

  • What defines MRSA, technically, is resistance to a class of antibiotics known as the beta-lactams, of which the earliest version is methicillin the "M" in MRSA and the most common current one is oxacillin.

    Ars Technica

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