The antimicrobial agent, the derivative of fluoroquiolone, inhibits bacterial DNA-gyrase, the x-ray region of chromosomal DNA.
Low toxicity for macroorganism cells is explained by the absence of girazes in them. It is a bactericidal antimicrobial drug of a wide spectrum of action, both for gram-positive and gram-negative flora.The advantage of the drug is a greater activity against Gram-positive cocci and anaerobes compared to the fluoroquinolones of previous generations. In a relationship 1The ramotrictal flora exhibits activity close to aminoglycosides.
On gramp-positive microorganisms have a bactericidal effect only in the period of division, on gram-negative organisms - and at rest, because it affects not only DNA-gyrase, but also causes lysis of the cell wall.
Prevents transcription of the genetic material of bacteria required for their normal metabolism, which leads to a rapid decrease in the ability of bacteria to division. As a result of its action, there is no parallel development of resistance to other antibiotics that do not belong to the group of intrinsic inhibitors. which makes it highly effective against bacteria that are resistant, for example to aminoglycosides, penicillins, iesfalosporins, tetranilins and many other antibiotics.
The following pathogenic microorganisms are highly sensitive to sparfloxacin: Escherichia coli, Shigella spp., Salmonella spp., Citrobacter spp., Klebsiella spp., Enterobacter spp., Serratia spp., Hafnia spp., Edwardsiella spp., Proteus spp. (indole-positive and indole-negative), Providencia spp .. Morganella spp. Yersinia spp .; Vibrio spp., Aeromonas spp. Plesiomonas spp., Pasteurella spp., Haemophilus spp., Campylobacter spp., Pseudomonas cepacia. Pseudomonas aeruginosa, Legionella spp. Neisseria spp., Moraxella spp., Acinetobacter spp., Brucella spp .; Staphylococcus spp., Streptococcus pneumoniae, Mycoplasma pneumoniae. Listeria spp., Corynebacterium spp., Chlamydia spp., Xanthomonas maltophilia.
Sparflox is characterized by high activity in relation to Mycobacterium tuberculosis, including multiple resistant strains.
Enterococcus faecium, Ureaplasma urealyticum, Nocardia asteroides, as a rule, sensitive to sparfloxacin.
The following microorganisms have a moderate sensitivity: Gcirdnerella spp., Flavobacterium spp., Alcaligenes spp., Streptococcus agalacliae, Enterococcus faecalis, Streptococcus pyogenes, Streptococcus viridans, Mycoplasma hominis, Mycobacterium fortuitum.
With some exceptions, anaerobic microorganisms are moderately sensitive (Peptococcus spp., Pcptostreplococcus spp.) or stable (Bacteroides spp.). Sparfloxacin is not effective against Treponema pallidum.
Resistance to sparfloxacin develops extremely slowly, because, on the one hand, after its action, there is almost no persistent microorganisms, and on the other hand - bacterial cells do not have enzymes that inactivate it.
No cross-resistance to other antimicrobials has been observed.
In a relationship Pseudomonas aeruginosa and other gram-negative bacilli by activity is inferior to ciprofloxacin.
Has a post-antibiotic effect: microorganisms do not reproduce within 0.5-4 h after the drug disappeared from the plasma.