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
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
1Pet Parents found this answer helpful
Book an appointment with the pros – our expert vets are here to help.