Neo-Polycin HC Ointment

Generic name:neomycin and polymyxin b sulfates, bacitracin zinc and hydrocortisone acetate
Dosage form: ophthalmic ointment
Drug class:Ophthalmic steroids with anti-infectives

Medically reviewed by Drugs.com. Last updated on Dec 1, 2021.

DESCRIPTION:

Neomycin and polymyxin B sulfates, bacitracin zinc and hydrocortisone acetate ophthalmic ointment is a sterile antimicrobial and anti-inflammatory ointment for ophthalmic use. Each gram contains: 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 acetate 10 mg (1 %), in a white petrolatum and mineral oil base.

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:

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 μg of neomycin standard per mg, calculated on an anhydrous basis. The structural formulae are:

Polymyxin B sulfate is the sulfate salt of polymyxin B1 and B2, 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:

CLINICAL PHARMACOLOGY:

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