Fusidic-Acid-(sodium-salt)

Fusidic acid is a fusidane antibiotic originally isolated from F. coccineum. It is active against the Gram-positive bacteria S. aureus, S. pyogenes, C. diphtheriae, B. subtilis, and C. tetani (MIC50s = 0.01-20 µg/ml) but not the Gram-negative bacteria E. coli, S. typhimurium, and P. vulgaris or the fungi C. albicans and A. fumigatus (MIC50s = >100 µg/ml for all). Fusidic acid inhibits ribosomal recycling and protein translocation, processes mediated by elongation factor G (EF-G), in isolated E. coli ribosomes (IC50s = ~0.1 and ~200 µM, respectively). Topical administration of fusidic acid (2%)...