Allergic reaction after Carprofen (Rimadyl) in dogs

The FDA has received 695 reports of allergic reaction in dogs after Carprofen. That is 1.5% of all reports for this medicine, compared with 2.3% across reports for all dog medicines, so it is reported less often than average with this medicine.

695Reports
43%Marked serious
23%Recovered
11%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
219 55%
1–2 days
46 12%
3–7 days
50 13%
1–4 weeks
39 9.8%
Over a month
45 11%

How the animals did

Recovered
159 23%
Recovered with lasting effects
4 0.6%
Still unwell when reported
165 24%
Died
58 8.3%
Euthanised
18 2.6%
Not known
291 42%

Problems reported at the same time

Age of the animals

Under 1 year
104
1–3 years
176
4–7 years
177
8–11 years
161
12+ years
57

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 allergic reaction in dogs?
695 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 the same day 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).

Allergic reaction with similar medicines

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