Tyrothricin

**Definition:** 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.

**Tree numbers:** - D04.345.566.850 - D12.644.641.850