When you buy low cost Vigamox online please read the Clinical Pharmacology info below:

Pharmacokinetics:Plasma concentrations of moxifloxacin were measured in healthy adult male and female subjects who received bilateral topical ocular doses of VIGAMOX® 3 times a day. The mean steady-state Cmax (2.7 ng/mL) and estimated daily exposure AUC (45 ng·hr/mL) values were 1,600 and 1,000 times lower than the mean Cmax and AUC reported after therapeutic 400 mg oral doses of moxifloxacin. The plasma half-life of moxifloxacin was estimated to be 13 hours.

Microbiology:

Moxifloxacin is an 8-methoxy fluoroquinolone with a diazabicyclononyl ring at the C7 position. The antibacterial action of moxifloxacin results from inhibition of the topoisomerase II (DNA gyrase) and topoisomerase IV. DNA gyrase is an essential enzyme that is involved in the replication, transcription and repair of bacterial DNA. Topoisomerase IV is an enzyme known to play a key role in the partitioning of the chromosomal DNA during bacterial cell division.

The mechanism of action for quinolones, including moxifloxacin, is different from that of macrolides, aminoglycosides, or tetracyclines. Therefore, moxifloxacin may be active against pathogens that are resistant to these antibiotics and these antibiotics may be active against pathogens that are resistant to moxifloxacin. There is no cross-resistance between moxifloxacin and the aforementioned classes of antibiotics. Cross resistance has been observed between systemic moxifloxacin and some other quinolones.

In vitroresistance to moxifloxacin develops via multiple-step mutations. Resistance to moxifloxacin occurs in vitroat a general frequency of between 1.8 x 10-9 to < 1 x 10-11 for Gram-positive bacteria.

Moxifloxacin has been shown to be active against most strains of the following microorganisms, both in vitroand in clinical infections as described in the INDICATIONS AND USAGE section:

Aerobic Gram-positive microorganisms:

Corynebacteriumspecies*

Micrococcus luteus*

Staphylococcus aureus

Staphylococcus epidermidis

Staphylococcus haemolyticus

Staphylococcus hominis

Staphylococcus warneri*

Streptococcus pneumoniae

Streptococcusviridans group

Aerobic Gram-negative microorganisms:

Acinetobacter lwoffii*

Haemophilus influenzae

Haemophilus parainfluenzae*

Other microorganisms:

Chlamydia trachomatis

*Efficacy for this organism was studied in fewer than 10 infections.

The following in vitrodata are also available, but their clinical significance in ophthalmic infections is unknown.The safety and effectiveness of VIGAMOX® in treating ophthalmological infections due to these microorganisms have not been established in adequate and well-controlled trials.

The following organisms are considered susceptible when evaluated using systemic breakpoints. However, a correlation between the in vitrosystemic breakpoint and ophthalmological efficacy has not been established. The list of organisms is provided as guidance only in assessing the potential treatment of conjunctival infections. Moxifloxacin exhibits in vitrominimal inhibitory concentrations (MICs) of 2 µg/ml or less (systemic susceptible breakpoint) against most (≥90%) of strains of the following ocular pathogens.

Aerobic Gram-positive microorganisms:

Listeria monocytogenes

Staphylococcus saprophyticus

Streptococcus agalactiae

Streptococcus mitis

Streptococcus pyogenes

StreptococcusGroup C, G and F

Aerobic Gram-negative microorganisms:

Acinetobacter baumannii

Acinetobacter calcoaceticus

Citrobacter freundii

Citrobacter koseri

Enterobacter aerogenes

Enterobacter cloacae

Escherichia coli

Klebsiella oxytoca

Klebsiella pneumoniae

Moraxella catarrhalis

Morganella morganii

Neisseria gonorrhoeae

Proteus mirabilis

Proteus vulgaris

Pseudomonas stutzeri

Anaerobic microorganisms:

Clostridium perfringens

Fusobacteriumspecies

Prevotellaspecies

Propionibacterium acnes

Other microorganisms:

Chlamydia pneumoniae

Legionella pneumophila

Mycobacterium avium

Mycobacterium marinum

Mycoplasma pneumoniae