6r 7r 7 r 2 4 ethyl 2 3 dioxo 1 piperazinylcarboxamido 2 4 hydroxyphenyl acetamido 3 1 methyl 1h tetrazol 5 yl thiomethyl 8 oxo 5 thia 1 azabicyclo 4 2 0 oct 2 en 2 carbonsaeure, 6r 7r 7 2 4 ethyl 2 3 dioxopiperazine 1 carbonyl amino 2 4 hydroxyphenyl acetyl amino 3 1 methyltetrazol 5 yl sulfanylmethyl 8 oxo 5 thia 1 azabicyclo 4 2 0 oct 2 ene 2 carboxylic acid, cefoperazone
For the treatment of bacterial infections caused by susceptible microorganisms.