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dalfopristin

n. A streptogramin antibiotic derived from pristinamycin.

Wikipedia
Dalfopristin

Dalfopristin is a semi-synthetic streptogramin antibiotic analogue of ostreogyrcin A ( virginiamycin M, pristinamycin IIA, streptogramin A). The combination quinupristin/dalfopristin (marketed under the trade name Synercid) was brought to the market by Rhone-Poulenc Rorer Pharmaceuticals in 1999. Synercid (weight-to-weight ratio of 30% quinupristin to 70% dalfopristin) is used to treat infections by staphylococci and by vancomycin-resistant Enterococcus faecium.