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My cat's kidney infection: Wrong antibiotic dose. Will it work?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | 16 years and 3 months old

My 16 years old cat had recurrenct kidney infection and was prescribed marfloxin f tablets for 45 days, but i has mistaken the dose and was giving her only 2.5 mg daily (for 3 kg body weight), while its needed 2.5mg for each 1 kg of body weight. For a month. What should i do now, start giving her 7.5 mg or take a break, or this antibiotic wont work anymore?

1 Answer

Most Helpful Answer

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Answered By Lindsey Edwards MVB, BSc, IVCA

Veterinarian

Published on October 7th, 2018

There is a possibility that such a long, low dose could encourage a resistant bacteria. I would consider withholding antibiotics for 7days and then performing a urine culture to determine exactly what bacteria if any are still present and whether additional treatment of the same or different antibiotics are required

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