neomycin and polymyxin b sulfates, bacitracin zinc and hydrocortisone - Medication Listings

Neomycin and polymyxin B sulfates, bacitracin zinc and hydrocortisone ophthalmic ointment, USP is a sterile antimicrobial and anti-inflammatory ointment for ophthalmic use. Each gram contains: Actives: neomycin sulfate equivalent to 3.5 mg neomycin base, polymyxin B sulfate equivalent to 10,000 polymyxin B units, bacitracin zinc equivalent to 400 bacitracin units, hydrocortisone 10 mg (1%); Inactives: mineral oil, white petrolatum. Neomycin sulfate is the sulfate salt of neomycin B and C, which are produced by the growth of Streptomyces fradiae Waksman (Fam. Streptomycetaceae). It has a potency equivalent of not less than 600 mcg of neomycin standard per mg, calculated on an anhydrous basis. The structural formulae are: Polymyxin B sulfate is the sulfate salt of polymyxin B 1 and B 2 , which are produced by the growth of Bacillus polymyxa (Prazmowski) Migula (Fam. Bacillaceae). It has a potency of not less than 6,000 polymyxin B units per mg, calculated on an anhydrous basis. The structural formulae are: Bacitracin zinc is the zinc salt of bacitracin, a mixture of related cyclic polypeptides (mainly bacitracin A) produced by the growth of an organism of the licheniformis group of Bacillus subtilis var Tracy. It has a potency of not less than 40 bacitracin units per mg. The structural formula is: Hydrocortisone, 11β, 17, 21-trihydroxypregn-4-ene-3, 20-dione, is an anti-inflammatory hormone. Its structural formula is: Diagram Description automatically generated Polymyxin B Sulfate (structural formula) Bacitracin Zinc (structural formula) Hydrocortisone (structural formula)