Cellulitis after Carprofen (Rimadyl) in dogs

The FDA has received 64 reports of cellulitis in dogs after Carprofen. That is 0.1% of all reports for this medicine, compared with 0.0% across reports for all dog medicines, so it is reported unusually often with this medicine.

64Reports

42%Marked serious

9.4%Recovered

20%Died or euthanised

7 daysTypical onset

How soon it started

Same day

9 21%

1–2 days

8 19%

3–7 days

6 14%

1–4 weeks

14 33%

Over a month

5 12%

How the animals did

Recovered

6 9.4%

Still unwell when reported

26 41%

Died

9 14%

Euthanised

4 6.3%

Not known

19 30%

Problems reported at the same time

Swelling

35 55%

Lethargy

21 33%

Loss of appetite

21 33%

Skin rash or irritation

20 31%

Liver problems

18 28%

Injection site reaction

18 28%

Fever

15 23%

Death

13 20%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

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 cellulitis in dogs?: 64 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 7 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).

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