Definition: A cyclic polypeptide antibiotic complex from Streptomyces virginiae, S. loidensis, S. mitakaensis, S. pristina-spiralis, S. ostreogriseus, and others. It consists of 2 major components, VIRGINIAMYCIN FACTOR M1 and virginiamycin Factor S1. It is used to treat infections with gram-positive organisms and as a growth promoter in cattle, swine, and poultry.
Other names Staphylomycin; Virginiamycin Phibro Brand; Virginiamycin Hancroft Brand; Virgimycine; Stajac; SmithKline Beecham Brand of Virginiamycin; Phibro Brand of Virginiamycin; Hancroft Brand of Virginiamycin; Founderguard; Eskalin; Antibiotic 899