Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A semisynthetic penicillin that has a broader antibacterial spectrum of action than that of penicillin G, is effective against gram-negative and gram-positive bacteria, and is used to treat infections of the intestinal, urinary, and respiratory tracts.

from the GNU version of the Collaborative International Dictionary of English.

  • noun a semisynthetic penicillin which can be considered as the common benzylpenicillin containing an amino group at the alpha benzyl position.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun pharmacology A broad-spectrum antibiotic having a beta-lactam structure.

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

  • noun semisynthetic penicillin (trade names Principen and Polycillin and SK-Ampicillin)

Etymologies

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

[Blend of amino– and penicillin.]

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Examples

  • Metronidazole is useful for gut infections caused by amebas and giardia, and sometimes for diarrhea that comes from taking 'wide-range' antibiotics (such as ampicillin).

    Chapter 31 1993

  • · If he has a fever, use an antibiotic such as ampicillin or tetracycline.

    Chapter 25 1993

  • Furthermore, if infectious mononucleosis is misdiagnosed as strep throat and treated with certain antibiotics (such as ampicillin), most patients will develop a rash (often misdiagnosed as an allergic reaction).

    The Observer-Dispatch Home RSS 2009

  • However, this may lead to the administration of inadequate or inappropriate antibiotic treatment as E. faecium is often resistant to both vancomycin (VRE - vancomycin-resistant enterococci) and penicillin-based drugs such as ampicillin while E. faecalis is often susceptible to ampicillin.

    Medlogs - Recent stories 2008

  • However, this may lead to the administration of inadequate or inappropriate antibiotic treatment as E. faecium is often resistant to both vancomycin (VRE - vancomycin-resistant enterococci) and penicillin-based drugs such as ampicillin while E. faecalis is often susceptible to ampicillin.

    Health News from Medical News Today 2008

  • AIDS (long-lasting diarrhea may be an early sign) inability to digest milk (mainly in severely malnourished children and certain adults) difficulty babies have digesting foods that are new to them allergies to certain foods (seafood, crayfish, etc.); occasionally babies are allergic to cow's milk or other milk side effects produced by certain medicines, such as ampicillin or tetracycline laxatives, purges, irritating or poisonous plants, certain poisons eating too much unripe fruit or heavy, greasy foods

    Chapter 20 1993

  • The Salmonella Heidelberg bacteria raging through your child's body are resistant to not one but several antibiotics -- ampicillin, tetracycline and streptomycin- why?

    Laurie David: Every Mother's Nightmare: Bacteria in Recalled Ground Turkey Is Resistant to Antibiotics Laurie David 2011

  • The Salmonella Heidelberg bacteria raging through your child's body are resistant to not one but several antibiotics -- ampicillin, tetracycline and streptomycin- why?

    Laurie David: Every Mother's Nightmare: Bacteria in Recalled Ground Turkey Is Resistant to Antibiotics Laurie David 2011

  • The staph in the met samples was also resistant to peniccilin, ampicillin, erythromycin, tetracycline, Cipro, Synergicide and Seraquin.

    Mindy Pennybacker: Stop Drug-Resisant Staph From Spoiling Your Holiday Roast! Mindy Pennybacker 2011

  • The Salmonella Heidelberg bacteria raging through your child's body are resistant to not one but several antibiotics -- ampicillin, tetracycline and streptomycin- why?

    Laurie David: Every Mother's Nightmare: Bacteria in Recalled Ground Turkey Is Resistant to Antibiotics Laurie David 2011

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