Cortisporin Otic Suspension
CORTISPORIN® Otic Suspension
(neomycin and polymyxin B sulfates and hydrocortisone) Otic Suspension, USP
CORTISPORIN® Otic Suspension (neomycin and polymyxin B sulfates and hydrocortisone otic suspension, USP) is a sterile antibacterial and anti-inflammatory suspension for otic use. Each mL contains: neomycin sulfate equivalent to 3.5 mg neomycin base, polymyxin B sulfate equivalent to 10,000 polymyxin B units, and hydrocortisone 10 mg (1%). The vehicle contains thimerosal 0.01% (added as a preservative) and the inactive ingredients cetyl alcohol, propylene glycol, polysorbate 80, and Water for Injection. Sulfuric acid may be added to adjust pH.
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 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:
Hydrocortisone, 11b,17, 21-trihydroxypregn-4-ene-3, 20-dione, is an anti-inflammatory hormone. Its structural formula is:
Last reviewed on RxList: 4/29/2008
This monograph has been modified to include the generic and brand name in many instances.
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