Tyrothricin
Synonyms
Codetricine
Dermotricine
Hydrotricine
Martricin
Tyroderm
Tyrosur
A polypeptide antibiotic mixture obtained from Bacillus brevis. It consists of a mixture of three tyrocidines (60%) and several gramicidins (20%) and is very toxic to blood, liver, kidneys, meninges, and the olfactory apparatus. It is used topically.