Patent ID: 7960337

Claim:
An aqueous solution for intravenous or intramuscular injection, comprising: a) vancomycin or a pharmaceutically acceptable salt thereof in an amount in the range from about 1 to 100 mg/ml calculated as vancomycin crystalline free acid; b) ceftriaxone or a pharmaceutically acceptable salt thereof in an amount in the range from about 1 to 100 mg/ml calculated as ceftriaxone crystalline free acid wherein the vancomycin and ceftriaxone are present in a weight ratio of between about 1:4 and about 4:1; c) a compatability/stabilizing agent selected from the group consisting of L-arginine, L-lysine, and L-histidine, in a weight ratio of 10%-45% of the total weight of the mixture; d) EDTA in a range of about 10 to 100 mg/ml, e) a pH neutralizing agent present in a range of about 10 to 100 mg/ml, which maintains the pH of the solution in the range of 7 to 9.