Framycetin (Neomycin B; Fradiomycin B) is an aminoglycoside class of antibiotic that works as a potent RNase P cleavage activity inhibitor with a Ki of 35 μM. It is a component of neomycin that is produced by Streptomyces fradiae. It can enhance effectiveness of topical antibacterial treatment of adenoiditis. It is also used in burn therapy.