Wiktionary
josamycin
n. A kind of macrolide antibiotic.
Wikipedia
Josamycin
Josamycin is a macrolide antibiotic. It is synthesized from strains of Streptomyces narbonensis var. josamyceticus var. nova
Currently sold in various countries.
Brand examples are:
Europe: Josalid, Josacine, Iosalide, Josamina. Russia: Wilprafen (Вильпрафен). Japan: Josamy.