therapeutic efficacy of two newer cephalosporins , cefmenoxime and ceftriaxone , was evaluated in newborn rats with experimental bacteraemia and meningitis due to an ampicillin-resistant strain of haemophilus influenzae type b , and the results were compared with those of ampicillin , chloramphenicol and co-trimoxazole ( trimethoprim/sulphamethoxazole ) .
C3536856
cephalosporins
C0007561
ceftriaxone