<unk>  (also Nebramycin II) is an aminoglycoside antibiotic used in veterinary medicine.  It is produced by Streptomyces tenebrarius.
Apramycin
Natamycin
Kanamycin
Netilmicin
Meropenem
Clindamycin hydrochloride 
Erythromycin 
Cyclacillin