Farmakologik xususiyatlari
Tseftriakson - keng ta'sir doirasiga ega III avlod yarim sintetik tsefalosporin antibiotik. Tseftriaksonning bakteritsid faolligi hujayra membranalarining sintezini bostirish bilan bog‘liq.
Sulbaktam - penitsillin asosiy yadrosining hosilasi. Beta-laktam antibiotiklarga chidamli mikroorganizmlar tomonidan ajratiladigan beta-laktamazalarning qaytmas ingibitori hisoblanadi; beta-laktamazaga chidamli mikroorganizmlar ta'sirida penitsillinlar va tsefalosporinlarning destruksiyasini oldini oladi, penitsillin bilan bog‘lovchi oqsillar bilan bog‘lanib, penitsillinlar va tsefalosporinlar bilan bir vaqtda qo‘llanganda sinergizm namoyon qiladi.
Sulbaktam klinik ahamiyatli antibakterial faollikka ega emas (istisno Neisseriaceae va Acinetobacter spp.). Ba'zi penitsillin bilan bog‘lovchi oqsillar bilan o‘zaro ta'sir qiladi, shuning uchun ushbu kombinatsiya ko‘pincha faqat tseftriaksonga nisbatan sezgir shtammlarga nisbatan kuchliroq ta'sir ko‘rsatadi.
Tseftriakson+sulbaktam kombinatsiyasi tseftriaksonga sezgir barcha mikroorganizmlarga nisbatan faol va sinergik ta'sir ko‘rsatadi (kombinatsiyaning MIK ni tseftriakson bilan solishtirganda 4 barobargacha kamaytiradi).
Tseftriakson+sulbaktam kombinatsiyasi quyidagi mikroorganizmlarga nisbatan faol: grammanfiy aerob mikroorganizmlar: Acinetobacter lwoffii, Acinetobacter anitratus*, Aeromonas hydrophila, Alcaligenes faecalis, Alcaligenes odorans, Borrelia burgdorferi, Capnocytophaga spp., Citrobacter diversus, Citrobacter freundii**, Escherichia coli, Enterobacter aerogenes*, Enterobacter cloacae*, Enterobacter spp., Haemophilus duereyi, Haemophilus influenzae, Haemophilus parainfluenzae, Hafnia alvei, Klebssiella oxyloca, Klebssiella pneumoniae**, Moraxella catarrhalis, Moraxella osloensis, Moraxella spp., Morganella morganii, Neisseria gonorrhoeae, Neisseria meningitidis, Pasteurella multocida, Plesiomonas shigelloides, Proteus mirabilis, Proteus vulgaris*, Proteus penneri*, Pseudomonas fluorences*, Pseudomonas spp. (Pseudomonas aerugenosa klinik shtammlari tseftriaksonga chidamli), Providencia spp., jumladan Providencia rettgeri*, Salmonella spp. (notifoid), Salmonella typhi, Serratia spp.*, jumladan Serratia marcescens*, Shigella spp., Vibrio spp., Yersinia spp., jumladan Yersinia enterocolitica; gram musbat aerob mikroorganizmlar: Staphylococcus aureus (jumladan penitsillinaza hosil qiluvchi shtammlar), Staphylococcus spp. (koaguloza-manfiy), Streptococcus pyogenes (A guruhi beta-gemolitik streptokokklar), Streptococcus agalactia (B guruhi beta-gemolitik streptokokklar), Streptococcus pneumoniae, Streptococcus spp. Viridians guruhi; anaerob mikroorganizmlar: Bacteroides spp., Clostridium spp. (Clostridium difficile dan tashqari), Fusobacterium spp. (jumladan Fusobacterium nucleatum), Peptococcus spp., Peptostreptococcus spp.
Metitsillin-ga chidamli Staphylococcus spp. tsefalosporinlarga, jumladan tseftriaksonga ham chidamli. Odatda, Enterococcus faecalis, Enterococcus faecium va Listeria monocytogenes ham chidamli.
* ushbu turlarning ayrim izolyatlari tseftriaksonga, asosan, xromosoma bilan kodlangan beta-laktamazalar hosil bo‘lishi natijasida chidamli.
** ushbu turlarning ayrim izolyatlari plazmida orqali uzatiladigan beta-laktamazalarning ko‘plab turlari hosil bo‘lishi natijasida tseftriaksonga chidamli.