ampicillin

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ampicillin

 [am″pĭ-sil´in]
a broad-spectrum antibiotic, a penicillin of synthetic origin, adminsistered orally as the base or intramuscularly or intravenously as the sodium salt. It is effective against a broad spectrum of gram-positive and gram-negative bacteria.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

am·pi·cil·lin

(am'pi-si'lin),
An acid-stable semisynthetic penicillin derived from 6-aminopenicillanic acid; it has a broader spectrum of antimicrobial action than penicillin G, inhibits the growth of gram-positive and gram-negative bacteria, and is not resistant to penicillinase; also available as ampicillin sodium and ampicillin trihydrate.
Farlex Partner Medical Dictionary © Farlex 2012

ampicillin

(ăm′pĭ-sĭl′ĭn)
n.
A broad-spectrum semisynthetic penicillin, C16H19N3O4S, that is used, often in the form of its sodium salt, to treat infections of the intestinal, urinary, and respiratory tracts.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

ampicillin

Infectious disease An analogue of penicillin, which inhibits crosslinking of peptidoglycan chains in the eubacterial cell wall. Ampicillin is comparable to penicillin G against gram-positive bacteria, but more active against gram-negative bacilli Adverse effects Rash, especially if Pt also receiving allopurinol or actively infected with EBV
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

ampicillin

A widely used penicillin antibiotic, effective by mouth and capable of killing many GRAM-NEGATIVE as well as GRAM-POSITIVE organisms. About one third of the dose is excreted unchanged in the urine. The drug precipitates a characteristic rash if given to people incubating GLANDULAR FEVER (infective mononucleosis). The drug is on the WHO official list. A brand name is Penbritin.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

am·pi·cil·lin

(am'pi-si'lin)
An acid-stable semi-synthetic penicillin that inhibits the growth of gram-positive and gram-negative bacteria and is not resistant to penicillinase.
Medical Dictionary for the Dental Professions © Farlex 2012