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My dog's Clavamox dosage for her UTI seems high. Is it safe?

Updated on September 23rd, 2025

Pet's info: Dog | Kai Ken | Female | spayed | 2 years and 7 months old | 24 lbs

My dog has a UTI. She was prescribed Clavamox for 10 days. According to everything I found on the drug information sheet, the dosage is 6.25mg per pound twice a day. She weighs 24lbs so that would be 150mg twice a day. Her vet put her on 250mg twice a day. Is this too much? I am looking for a second opinion on this.

1 Answer

Most Helpful Answer

Catherine Stecyk

Answered By Catherine Stecyk

Veterinarian

Published on March 20th, 2019

Hello and thank you for reaching out to Petco Pet Education Center, formerly Petcoach. Love Saki’s name! You are correct in your calculation, but 250 mg is not too much for Saki. Clavamox is only available in certain tablet sizes, including 125mg and 250mg. We never want to under-dose antibiotics, so we will often round up to the next best tablet size. As long as Saki is taking the antibiotic with food, GI side effects should be minimal. I hope this is helpful!
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