Ampicillin microbiology

Ampicillin
AMPICILLIN® FDA Package Insert
Description
Clinical Pharmacology
Microbiology
Indications and Usage
Contraindications
Warnings and Precautions
Adverse Reactions
Overdosage
Dosage and Administration
How Supplied
Labels and Packages

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mohamed Moubarak, M.D. [2]

Microbiology

While in vitro studies have demonstrated the susceptibility of most strains of the following organisms, clinical efficacy for infections other than those included in the INDICATIONS AND USAGE section has not been demonstrated.

The following bacteria have been shown in in vitro studies to be susceptible to Ampicillin for Injection, USP:

GRAM-POSITIVE ORGANISMS: Hemolytic and nonhemolytic streptococci, D. pneumoniae, nonpenicillinase-producing staphylococci, Clostridia spp., B. anthracis, Listeria monocytogenes, and most strains of enterococci.

GRAM-NEGATIVE ORGANISMS: H. influenzae, N. gonorrhoeae, N. meningitidis, Proteus mirabilis, and many strains of Salmonella, Shigella, and E. coli.

AMPICILLIN does not resist destruction by penicillinase.

Susceptibility Tests

AMPICILLIN Susceptibility Test Discs, 10 µg, should be used to estimate the in vitro susceptibility of bacteria to Ampicillin for Injection, USP.

References

Adapted from the FDA Package Insert.