cefotiam showed a wide antibacterial spectrum including more than 70 % of enterobacteriaceae ( except serratia ) , beta-lactamase-producing and non-beta-lactamase-producing haemophilus influenzae , non-enterococcus streptococci , and penicillinase-producing and non-penicillinase-producing staphylococci susceptible to methicillin .
C0597979
beta-lactamase
C0030841
penicillinase