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[[Image: Polymyxin B.png|thumb|right|250px|The Core Structure of Polymyxin B (Cpoyright WikiMedia Commons)]]
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[[Image: Polymyxin B.png|thumb|right|250px|The Core Structure of Polymyxin B (Copyright WikiMedia Commons)]]
This type of antibiotic are basic cyclic decapeptides. The commonly used drugs are '''Polymyxin B and E (Colistin)'''.
This type of antibiotic are basic cyclic decapeptides. The commonly used drugs are '''Polymyxin B and E (Colistin)'''.