Medical Definition of Polymyxin b
1.
A mixture of polymyxins b1 and b2, obtained from bacillus polymyxa strains. They are basic polypeptides of about eight amino acids and have cationic detergent action on cell membranes. Polymyxin b is used for infections with gram-negative organisms, but may be neurotoxic and nephrotoxic.
Pharmacological action: antibiotics, peptide.
Chemical name: Polymyxin B
(12 Dec 1998)
Lexicographical Neighbors of Polymyxin B
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