Dog on carprofen for pain: Why is he suddenly peeing inside?

Question

Marley ruptured his cruciate ligament a week ago. He has been on 100mg of carprofen, but recently has been urinating in house (which he never does0. Could this be a side effect of carprofen or side effect from the pain he's feeling. Pet's info: Dog | Mixed Breed Large (61lb +) | Male | neutered | 90 lbs

Dr. B. DVM, DACVIM (Oncology) · Accepted Answer

This is not a typical side effect of carprofen with the most common side effects being gi in origin. Is your pet drinking more water as well? As these drugs (nsaids) can affect the kidneys increased thirst/urination is sometimes related to this. Other options could be he is sore and not making it outside as often or has a urinary tract issue (bladder/prostate). I would recommend a recheck with your family vet to check his kidney values and rule out a urinary tract issue. I hope this helps and thank you for using Petco Pet Education Center, formerly Petcoach!

Dog on carprofen for pain: Why is he suddenly peeing inside?

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