Polymyxin B Sulfate 500mg
https://www.manchesterbeacon.org/shop/rw2-trc-p689400-500mg-polymyxin-b-sulfate-500mg-282341
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This Polymyxin is guaranteed a B with the use of Sulfate 500mg and directly supplied to your lab by Gentaur's warehouse.
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30-day money-back guarantee
Shipping: 2-3 Business Days