Аmpitsillin – keng taʼsir doirasiga ega boʼlgan yarimsintetik penitsillinlar guruhiga mansub antibiotik.
Mikroorganizmlarning hujayra devori sintezini toʼxtatib, bakteritsid taʼsir qiladi.
Penitsillinaza taʼsirida parchalanadi.
Preparatga quyidagi mikroorganizmlar doimo sezgir: Staphylococcus spp., Streptococci A, B, C, F, G; Str.
pneumoniae penitsillinaza ishlab chiqarmaydiganlari: L.
monocytogenes, Corynebacterium diphtheriae, Erysipelotrix rhusopathiae, Eikenela, N.meningitidis, Bordetella pertussis, Clostridium spp., Propionibacterium acnes, Peptostreptococcus spp., Actinomyces spp., Leptospira spp., Treponema; Enterococcus faecalis, E.coli, Proteus mirabilis, Salmonella spp., Vibrio cholerae, H.Influenzae, N.gonorrhoeae, Fusobacterium spp., Prevotella spp.
lar doimo sezgir emas.
Preparatga chidamli mikroorganizmlar: D.catarrhalis, Klebsiella spp., Enterobacter spp., C.diversus, C.freundi, Proteus vulgaris, Providencia rettgeri, Morganella morganii, Y.enterocolitica, Pseudommonas spp., Acinetabacter spp., Xanthomonas spp., Flavobacterium spp., Alcaligenes spp., Nocardia spp., Campylobacter spp., Legionella pneumophila, Mycobacterium spp., Bacteroides spp., Mycoplasma spp., Chlamydia spp.