U.S. flag An official website of the United States government

On Oct. 1, 2024, the FDA began implementing a reorganization impacting many parts of the agency. We are in the process of updating FDA.gov content to reflect these changes.

  1. Home
  2. Drugs
  3. Development & Approval Process | Drugs
  4. Development Resources
  5. Levofloxacin Oral, Injection products
  1. Development Resources

Levofloxacin Oral, Injection products

 

Minimum Inhibitory
Concentrations

(mcg/mL)

Disk Diffusion
(zone diameter in mm)

Pathogen

S

I

R

S

I

R

Enterobacterales

M100 standard is recognized

Salmonella spp.

M100 standard is recognized

-

-

-

Pseudomonas aeruginosa

M100 standard is recognized

Methicillin-susceptible
Staphylococcus aureus

≤2

4

≥8

≥17

14–16

≤13

Enterococcus spp.

M100 standard is recognized

Haemophilus influenzae and parainfluenzae

M100 standard is recognized

Streptococcus pneumoniae

M100 standard is recognized

Streptococcus spp β- Hemolytic Group

M100 standard is recognized

Bacillus anthracis

M45 standard is recognized

-

-

-

Yersinia pestis

M45 standard is recognized

-

-

-

S = Susceptible; I = Intermediate; R = Resistant

Exceptions to the recognized standard

For the bacteria listed below, susceptibility test interpretive criteria are not recognized at this time:

Acinetobacter spp.

Burkholderia cepacia complex

Stenotrophomonas maltophilia

Other Non-Enterobacterales

Streptococcus spp. Viridans Group

Neisseria meningitidis

Back to Top