Antibiotic from the group of lincosamines, produced Streptomyces lincolnensis. In therapeutic doses acts bacteriostatically, at higher concentrations has a bactericidal effect. Suppress protein synthesis of bacteria due to reversible binding to 50S subunit of ribosomes, disrupts the formation of peptide bonds.
To lincomycin are sensitive:
- in vivo: Staphylococcus aureus (penicillin-producing and non-producing strains), Streptococcus pneumoniae;
- in vitro: aerobic Gram-positive cocci (Streptococcus pyogenes, Streptococcus spp. groups viridians), aerobic gram-positive sticks (Corynebacterium diphtheriae), anaerobic gram-positive spore-forming sticks (Propionibacterium acnes), anaerobic gram-positive spore-forming sticks (Clostridium perfringens, Clostridium tetani).
Lincomycin is effective against Staphylococcus spp., resistant to penicillin, tetracyclines, chloramphenicol, streptomycin, cephalosporins (30% Staphylococcus spp., resistant to erythromycin, have cross resistance to lincomycin).
Lincomycin is ineffective against most strains Enterococcus faecalis; does not apply to Neisseria gonorrhoeae, Neisseria miningitidis, Haemophilus influenzae and other gram-negative bacteria, as well as fungi and viruses.The optimum action is in alkaline medium (pH 8.0-8.5).
Resistance to lincomycin develops slowly.