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polymyxin
(redirected from Polymixin)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.03 sec.
polymyxin [‚päl·i′mik·sən]
(microbiology)
Any of the basic polypeptide antibiotics produced by certain strains ofBacillus polymyxa.


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ulcerans strains may have different growth requirements or may be more sensitive to the antimicrobial agents in semisolid transport medium (PANTA: polymixin B, amphothericin B, nalidixic acid, trimethoprim, and azlocillin) than those from other geographic locations.
The products include Bacitracin; Bacitracin Zinc and Polymixin B Sulfate; Gentamicin Sulfate, Neomycin and Polymyxin B Sulfates and Bacitracin Zinc; Neomycin and Polymyxin B Sulfates and Dexamethasone; Neomycin and Polymyxin B Sulfates, Bacitracin Zinc and Hydrocortisone Acetate as well Erythromycin Ophthalmic Ointments USP.
VIM]-positive isolates (49 of 64 [76%]) exhibited a multidrug-resistant phenotype including all the tested drugs (imipenem, meropenem, ceftazidime, piperacillin, aztreonam, amikacin, gentamicin, tobramycin, and ciprofloxacin), except polymixin B.
 
 
 
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