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Pet Health Library

Horses + Surgical Conditions + English

  • Transdermal means the application of a medicine or drug through the skin, where it is absorbed into the bloodstream. Relatively few drugs are currently available for transdermal application. The biggest risk with a transdermal medication is that it could be insufficiently absorbed, resulting in inadequate drug levels and treatment. The inside of the outer ear flap (not inside the ear canal) is an excellent area to apply transdermal medications. After you have administered the medication, try to distract your pet from scratching or rubbing the ear for a few minutes by feeding your pet, taking your pet for a walk, or playing together immediately afterward. If your pet is prescribed a transdermal medication patch, your veterinarian will often shave an area to affix the patch.