neomycin

A broad-spectrum antibiotic produced from strains of the actinomycete Streptomyces fradiae and used especially in the form of its sulfate as an intestinal antiseptic in surgery.

A broad-spectrum aminoglycoside antibiotic that is found in many topical medications

an antibiotic obtained from an actinomycete and used (as a sulphate under the trade name Neobiotic) as an intestinal antiseptic in surgery