Amoxicillin is broad spectrum semi-synthetic penicillin with bactericidal activity against a wide range
of gram-positive and gram-negative bacteria including the following:
Gram-negative: Actinobacillus lignieresi ; Bordetella bronchiseptica, Escherichia coli (non βlactamase producing strains), Corynebacterium spp.; Fusobacterium spp.; Haemophilus spp.;
Moraxella spp.; Pasteurella spp.; Proteus mirabilis (non β-lactamase producing strains); Salmonella
spp.
Gram-positive: Bacillus anthracis; Clostridium spp.; Erysipelothrix rhusiopathiae ;
streptococci; staphylococci (non β-lactamase producing strains).
