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... > LIFE SCIENCES > biology > biochemistry > biochemistry by substance > biochemical substances by activity or property > ionophores > polymyxin B

... > PHYSICAL SCIENCES > chemistry > chemical substances > chemical substances by use or effect > drugs > drugs by function > antiinfective agents > antibacterial agents > polymyxin B

... > LIFE SCIENCES > biology > biochemistry > biochemistry by substance > biochemical substances by composition or structure > proteins, peptides and amino acids > peptides > peptides by chain length > oligopeptides > cyclic peptides > polymyxin B

... > PHYSICAL SCIENCES > chemistry > chemical substances > chemical substances by use or effect > antibiotics > antibiotics by structure > peptide antibiotics > polymyxin B