glycopeptide antibiotic avoparcin ARO:3000767 ChEBI:221101 antibiotic_resistance Avoparcin is a glycopeptide antibiotic that is an analog of vancomycin. It was formally used to treat animals, but has since been banned because of its selection for vancomycin-resistant enterococci. PubChem:16132294 ChEMBL:CHEMBL2108224