Urine abnormalities after Carprofen (Rimadyl) in dogs

279 reports to the FDA describe urine abnormalities in dogs given Carprofen. That is 0.6% of all reports for this medicine, compared with 0.2% across reports for all dog medicines, so it is reported unusually often with this medicine.

279Reports
51%Marked serious
14%Recovered
23%Died or euthanised
11 daysTypical onset
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How soon it started

Same day
26 11%
1–2 days
36 16%
3–7 days
38 16%
1–4 weeks
77 33%
Over a month
54 23%

How the animals did

Recovered
36 13%
Recovered with lasting effects
3 1.1%
Still unwell when reported
148 53%
Died
14 5.0%
Euthanised
49 18%
Not known
29 10%

Problems reported at the same time

Age of the animals

Under 1 year
11
1–3 years
27
4–7 years
73
8–11 years
101
12+ years
65

About this medicine

Carprofen relieves pain and inflammation from arthritis or after surgery.

Products with this ingredient include Rimadyl, Novox, Vetprofen. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.

NSAIDs can affect the stomach, liver and kidneys. Vets usually recommend blood tests before and during long-term use.

Questions owners ask

Can Carprofen cause urine abnormalities in dogs?
279 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
How soon after a dose was it reported?
In half of the reports with dates, it started within 11 days of the first dose.
What should I do?
Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Urine abnormalities with similar medicines

All reported side effects of Carprofen in dogs · Medicines most reported with urine abnormalities