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My cat has ringworm. Can I use Tetracycline externally to treat it?

Updated On September 23rd, 2025

Pet's info: Cat | Persian | Female | unspayed | 7 months and 10 days old | 5 lbs

May I apply Tetracycline buffer phosphate / tetracycline HCl 250 mg / capsule as the external use for my kitty that got ringworm on her shoulders?

1 Answer

Most Helpful Answer

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Answered By Rodrigo Roca, DVM

Veterinarian

Published on February 9th, 2018

Hello, sorry to hear about Burrikh. That medication is an antibiotic which is good for treating bacteria only. Ringworm unfortunately is a fungal organism that needs anti-fungals to treat (clotrimazole, ketoconazole, etc.) In addition, cats tend to not be able to tolerate tetracyclines well and can develop secondary signs such as lethargy, vomiting, diarrhea and anorexia. I would recommend that you do not apply this oral formulation externally as your kitten may be able to lick it and it will not treat ringworm disease. Hope this helps and best of luck.

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