- Guide to PHARMACOLOGY
polymyxin B is an approved drug (FDA (1964, no prior history available))
Compound class: Peptide or derivative
Comment: Polymyxin B is an antimicrobial. It is a mixture of the polypeptides polymyxins B1 and B2, both obtained from Bacillus polymyxa strains. It has bactericidal action against almost all gram-negative bacilli except the Proteus group.
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Molecular structure representations generated using Open Babel