Tresaderm for Dogs & Cats | EP Rx
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Tresaderm Topical Solution for Dogs & Cats

Tresaderm Topical Solution for Dogs & Cats

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  • Description
  • Ingredients
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  • FAQ
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Tresaderm Topical Solution is used in pets to treat certain acute or chronic bacterial, fungal and inflammatory skin disorders, as well as otitis externa (ear inflammation).


Cats and Dogs

Key Benefits

  • Successfully fights bacterial infections of the skin and ears
  • Also treats inflamed skin and ears
  • Drops make ear application easy
  • Results in a week, or less
  • Available in 7.5 mL and 15 mL bottles

How It Works

Each 15 ml dropper of Tresaderm solution contains thiabendazole and dexamethasone neomycin sulfate. Thiabendazole is a fungicide and parasiticide that kills or inhibits fungi and parasites. Dexamethasone neomycin sulfate is a potent anti-inflammatory.

Prescription Required

Must shipped Express 1-2 Days. A $29.95 flat rate fee is charged for all orders. Someone should be present to sign for and receive the order when it ships to you. For more shipping info click here.


Active Ingredients (per mL)

Thiabendazole40 mg
Dexamethasone1 mg
Neomycin (from neomycin sulfate)3.2 mg

Other Ingredients

Glycerin, propylene glycol, purified water, hypophosphorous acid, about 8.5% ethyl alcohol and about 0.5% benzyl alcohol.


Dosage & Administration

Use this medication exactly as directed by your veterinarian. If you do not understand the directions ask the pharmacist or veterinarian to explain them to you. The administration of Tresaderm depends on the severity of the condition and the extent of the lesions. The typical dose for the ear is 5-15 drops instilled into the ear twice a day. To treat skin disorders affecting other than the ear, the surface of the lesion should be well moistened with Tresaderm, usually 2-4 drops per square inch, twice a day. Store Tresaderm in the refrigerator. Do not freeze. Tresaderm should not be used for more than one week. Do not use Tresaderm in the eyes. Do not use Tresaderm on pregnant animals. Keep out of the reach of children or pets.


  • Tresaderm Dermatologic Solution is a prescription medication used on dogs and cats as an aid in the treatment of certain acute or chronic bacterial, fungal, and inflammatory skin disorders as well as otitis externa (ear infections).
  • Tresaderm is used topically on the skin or in the ears depending on the type of infection being treated.
  • Keep Tresaderm in the refrigerator when not being used.

Quick Tips

Prior to use, the affected area should be cleaned. Application and use of Tresaderm should be limited to a period of not longer than one week. Do not use Tresaderm in the eyes.

Dosage Table

Usage TypeDosage
For use in ears)The usual dose for the ear is 5-15 drops placed into the ear twice daily
For topical useThe usual dose to treat skin disorders affecting other than in the ear is 2 to 4 drops per square inch twice daily


Store Tresaderm in the refrigerator. Do not freeze.


For topical use on the skin or ears only. Do not get in eyes.

Possible Side Effects

Side effects associated with this medication are related to the individual ingredients. Side effects following the use of injected or oral corticosteroids include increased thirst and urination, vomiting, diarrhea and Cushing's syndrome following prolonged or repeated steroid therapy. Discontinue use and contact the veterinarian if sensitivity to neomycin, which may cause redness, irritation and swelling, occurs. Continue the medication and talk to your veterinarian about any side effect that seems unusual or bothersome to the animal.


Apply the missed dose as soon as you remember. However, if it is almost time for the next regularly scheduled dose, skip the missed dose and apply the next one as directed. Do not give a double dose of the medication.
An overdose of this medication is unlikely. If an overdose is suspected, seek emergency veterinary medical treatment.
Do not use this medication in pets allergic to it or any of the individual ingredients. Discontinue the use of this medication and contact the veterinarian if hearing loss is noted during treatment.
Before using Tresaderm, tell your veterinarian if your pet is using other antibiotic, antifungal or corticosteroid medications either topically or by mouth. Talk to the veterinarian or pharmacist before giving any prescription or over the counter medicines.

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