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My dog has UTIs. Are Cosequin and Duralactin safe for his kidneys?

Updated On September 23rd, 2025

Pet's info: Dog | Australian Shepherd | Male | neutered | 9 years old | 57 lbs

Hello! My 9 year old Aussie/border collie/lab mix just got his second TPLO surgery last month and my vet has him On cosequin once daily and durlactin twice daily. He now has a recurring UTI and the vet keeps prescribing amoxicillin for him. He’s been cosequin for a year and just recently been out on the duralactin. Could the cosequin and duralactin together be doing damage to his kidneys?

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2 Answers

Most Helpful Answer

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Answered By Ana M, DVM

Veterinarian

Published on February 8th, 2019

Thank you for submitting your question regarding Buddy. Cosequin and Duralactin are typically safe supplements. It is unusual though for a male dog to have recurrent urinary tract infections. He should have a sterile urine sample submitted for a urine culture after finishing his most recent round of antibiotics. This will ensure the infection has actually resolved. X-rays of his belly are useful to look for bladder stones as these can predispose a dog to infections. I hope this information helps!

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    Answered By Dr Stafford, BVetMed, MRCVS

    Veterinarian

    Published on

    I would be surprised if those tablets were doing and damage as they are supplements as opposed to nonsteroidal medications. However, in an older animal it would be wise to double check kidney function. Also in the case of a recurring infection I would advise submitting a urine sample for culture and sensitivity.

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