The FDA approved the polymyxin B in treating infections caused by susceptible strains of the designated aerobic gram-negative bacteria: Urinary tract infections, Bloodstream infections, Meningeal infections, Corneal and subconjunctival infections eye infections. Polymyxin B is one of a group of basic polypeptide antibiotics derived from B polymyxa (B aerosporous). Polymyxin B sulfate is the sulfate salt of Polymyxins B1 and B2, produced by the growth of Bacillus polymyxa (Prazmowski) Migula (Fam. Bacillacea). Polymyxin B sulfate has a bactericidal action against almost all gram-negative bacilli except the Proteus group. This medicine is supplied in 500000 IU to administer intramuscularly, intravenously, intrathecally, or ophthalmically. Polymyxin B is readily available from several generic medicine suppliers. To know more about this medicine, contact us on 18008891064.