Ampicillin - Semi-synthetic penicillin, which has a wide range of effects and exhibits bactericidal effect. Suppresses the synthesis of the cell wall of bacteria: Streptococcus pneumoniae, Staphylococcus spp., Bacillus anthracis, Clostridium spp., Enterococcus faecalis, Listeria spp., Haemophilus influenzae, Neisseria meningitidis, Proteus mirabilis, Pasteurella multocida, Salmonella spp., Shigella spp., Escherichia coli, Aerobic non-spore-forming bacteria. Acid-resistant.