Erythromycin ReadyMade™ solution is provided as a sterile-filtered solution of Erythromycin formulated in water at a concentration of 1 mg/ml. It has been filter-sterilized using a 0.22 μm filter.
Erythromycin is a broad-spectrum macrolide antibiotic derived from Saccharopolyspora erythraea (formerly Streptomyces erythraeus) that inhibits bacterial protein synthesis. It is composed largely of Erythromycin A, with small amounts of Erythromycin B and C.