Drugs and medications image
Drugs and medications image EquiMed


KOR-tih-cos-por-in - Pronunciation guide

Brand Names

  • BNP Hydrocortisone Opthalmic Ointment
  • Easotic® Otic Suspension


Rx symbolCorticosporin is a topical solution that is a combination product with two antibiotic agents, neomycin sulfate and  polymyxin B sulfate, and an anti-inflammatory corticosteroid .


Corticosporin is used to treat certain ear infections.

Dosage and Administration

Prescription medicationCorticosporin
Method Dosage Concentration Period Duration
Otic 4 drops per ear   3 to 4 times daily 10 days maximum


  • Federal law restricts this drug to use by or on the order of a licensed veterinarian.
  • This product has not been approved for use in horses. A veterinarian may prescribe this medication for extra-label use.
  • Calculator is for educational purposes only. Follow your veterinarian's instructions regarding use of this, or any medication.

Side Effects

Rarely, redness, irritation, or swelling of the ear may occur. Corticosporin has been known to occasionally cause temporary deafness.


Corticosporin should not be used in horses that are hypersensitive to any of its ingredients. Before corticosporin is used, a veterinarian should check to make sure the ear drum of the horse is intact.

Corticosporin is a prescription drug. U. S. federal law restricts this drug to use by or on the lawful written or oral order of a licensed veterinarian.

Corticosporin would be prohibited in drug free competitions. Check with the proper regulatory group.


Corticosporin should not be used with other ear preparations unless prescribed by a veterinarian.


Overdose may result in more severe side effects mentioned above.


BNP Hydrocotisone Opthalmic OintmentBNP Hydrocotisone Opthalmic Ointment

EasOtic® Otic SuspensionEasOtic® Otic Suspension



About the Author

EquiMed Staff

EquiMed staff writers team up to provide articles that require periodic updates based on evolving methods of equine healthcare. Compendia articles, core healthcare topics and more are written and updated as a group effort. Our review process includes an important veterinarian review, helping to assure the content is consistent with the latest understanding from a medical professional.