Farmakologik xususiyatlari
Bakteriostatika antibiotik tetratsiklinlar guruhidan. Transport RNK va ribosoma o'rtasida kompleks hosil bo'lishini buzadi, bu oqsil sintezini bostirishga olib keladi. Gram ijobiy mikroorganizmlarga nisbatan faol: Staphylococcus spp. (shu jumladan, Staphylococcus aureus, penitsilinaza ishlab chiqaruvchi shtammlar), Streptococcus spp. (shu jumladan, Streptococcus pneumoniae), Listeria spp., Bacillus anthracis, Clostridium spp., Actinomyces israelii; gram manfiy mikroorganizmlarga: Haemophilus influenzae, Haemophilus ducreyi, Bordetella pertussis, ko'pchilik enterobakteriyalar (Escherichia coli, Enterobacter spp., shu jumladan, Enterobacter aerogenes, Klebsiella spp., Salmonella spp., Shigella spp., Yersinia pestis, Bartonella bacilliformis, Vibrio cholerae, Vibrio fetus, Rickettsia spp., Borrelia burgdorferi, Brucella spp. (streptomitsin bilan kombinatsiyada); penitsillinlarni buyurishga qarshi ko'rsatmalar bo'lganda - Clostridium spp., Neisseria gonorrhoeae, Actinomyces spp.; shuningdek, venereal va inguinal limfogranulomani keltirib chiqaruvchi mikroblarga nisbatan faol, Treponema spp. Tetratsiklinga chidamli mikroorganizmlar: Pseudomonas aeruginosa, Proteus spp., Serratia spp., ko'pchilik Bacteroides spp. shtammlari va qo'ziqorinlar, viruslar, beta-gemolitik A guruhi streptokoklari (shu jumladan, 44% shtammlar Streptococcus pyogenes va 74% shtammlar Streptococcus faecalis).