Abstract
Spiramycin is a natural 16-membered macrolide antibiotic that has been used in clinical practice for about 70 years. Despite long-term use, spiramycin retains its position in clinical practice; the resistance of the main respiratory and urogenital pathogens is lower to spiramycin than to 14- and 15-membered macrolides. The interest in spiramycin is due to the fact that its physico-chemical and pharmacokinetic properties are similar to the last semi-synthetic macrolides, and it lacks the disadvantages of erythromycin. Special biological properties of spiramycin explain its consistently high clinical efficacy that has lasted for 70 years of clinical use in various infections. It is necessary to emphasize the uniqueness of spiramycin as an antibiotic with not only the direct effect on microbes, but also non-antibiotic properties. This allowed the experts at the time to declare the «paradox» of spiramycin — the presence of a higher real clinical efficacy than expected according to in vitro studies. Such properties of spiramycin include pro-antibiotic and post-antibiotic effects, immunomodulatory effect, as well as high intracellular and extracellular concentrations of the antibiotic. The review discusses antimicrobial, pharmacokinetic, and pharmacodynamic characteristics of spiramycin and its place in the treatment of various infections — respiratory, ENT, urogenital, gynecological, and dental.
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