Composição de antibiótico azalídeo e método para sua obtenção

摘要

Antibiotic compositions comprising an equilibrium mixture of azalide isomers, water, and one or more acids, and methods for preparing such compositions, are disclosed. The antibiotic compositions can be advantageously stabilized by adding one or more water-miscible co-solvents. In a preferred embodiment, the one or more co-solvents is propylene glycol.