1) Ticarcillin was administered to 10 patients suffering from respiratory infections caused byPs. aeruginosa, E. coliand glucose non-fermenting G. N. R. As the result, five cases were improved clinically, and six cases bacteriologically.
2) Relationship between MICs of infecting organism and effects of ticarcillin are encountered in the pulmonary parenchymal infections, but it was difficult in the other respiratory tract infections due to the severity of the underlying diseases or the sites of foci.
3) None of the cases treated with ticarcillin experienced any side effects; therefore, ticarcillin can be considered to be an effective drug with good clinical responses.
