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(neomycin and polymyxin B sulfates, bacitracin zinc, and hydrocortisone) Ointment, USP
CORTISPORIN Ointment (neomycin and polymyxin b sulfates, bacitracin zinc, and hydrocortisone) (neomycin and polymyxin B sulfates, bacitracin zinc, and hydrocortisone ointment, USP) is a topical antibacterial ointment. Each gram contains: neomycin sulfate equivalent to 3.5 mg neomycin base, polymyxin B sulfate equivalent to 5,000 polymyxin B units, bacitracin zinc equivalent to 400 bacitracin units, hydrocortisone 10 mg (1%), and white petrolatum, qs.
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:
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 (Fam. Bacillaceae). 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:
What are the precautions when taking neomycin and polymyxin b sulfates, bacitracin zinc, and hydrocortisone (Cortisporin Ointment)?
Before using this product, tell your doctor or pharmacist if you are allergic to neomycin, bacitracin, polymyxin, or hydrocortisone; or to aminoglycoside antibiotics (e.g., gentamicin, tobramycin); or to other corticosteroids (e.g., dexamethasone, prednisone); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
This medication should not be used to treat an infection in the outer ear canal if the eardrum is torn (perforated).
Before using this medication, tell your doctor or pharmacist your medical history, especially of: poor blood circulation, a weakened immune system.
Children may be more sensitive to the effects of too much...
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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