Farmakologik xususiyatlari
Farmakokinetika
Mahalliy qo‘llanganda tizimli so‘rilish past.
Tobramitsin tez va keng miqyosda siydik bilan glomerulyar filtrlatsiya yo‘li bilan, asosan o‘zgarmagan dori shaklida ajraladi. Plazmadan T1/2 taxminan 2 soat, klirensi 0,04 l/soat/kg va taqsimlanish hajmi 0,26 l/kg. Tobramitsin plazma oqsillari bilan bog‘lanishi 10% dan kam.
Farmakodinamika
Tobrimed bu aminoglikozidlar guruhiga mansub keng ta’sir doirasiga ega antibiotikdir. Past konsentratsiyalarda bakteriostatik ta’sir ko‘rsatadi (30S ribosoma subbirligini bloklaydi va oqsil sintezini buzadi), yuqoriroq konsentratsiyalarda – bakteritsid ta’sir ko‘rsatadi.
Staphylococcus spp. (shu jumladan, Staphylococcus aureus, Staphylococcus epidermidis /koagulaza-manfiy va koagulaza-musbat/, shuningdek, penitsillinga chidamli shtammlar); Streptococcus spp. (shu jumladan, a-b-gemolitik turlar, ayrim negemolitik turlar, Streptococcus pneumoniae); Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumoniae, Serratia spp., Providencia spp., Shigella spp., Citrobacter spp., Enterobacter aerogenes, Proteus mirabilis (indol-manfiy) va indol-musbat Proteus spp. turlari, Hemophilius influenzae, Hemophilius aegyptius, Moraxella lacunata, Acinetobacter calcoaceticus (Herellea vaginacola), ayrim Neisseria spp. turlari (shu jumladan, Neisseria gonorrhoeae) ga nisbatan yuqori faollikka ega.