Labelled drug-drug interaction medication error after Carprofen (Rimadyl) in dogs

The FDA has received 842 reports of labelled drug-drug interaction medication error in dogs after Carprofen. That is 1.8% of all reports for this medicine, compared with 0.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

842Reports
0.6%Marked serious
0.1%Recovered
33%Died or euthanised
10 daysTypical onset
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How soon it started

Same day
2 20%
1–2 days
2 20%
3–7 days
1 10%
1–4 weeks
1 10%
Over a month
4 40%

How the animals did

Recovered with lasting effects
1 0.1%
Still unwell when reported
6 0.7%
Died
272 32%
Euthanised
3 0.4%
Not known
560 67%

Problems reported at the same time

Age of the animals

Under 1 year
26
1–3 years
61
4–7 years
177
8–11 years
299
12+ years
268

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 labelled drug-drug interaction medication error in dogs?
842 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 10 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).

Labelled drug-drug interaction medication error with similar medicines

All reported side effects of Carprofen in dogs · Medicines most reported with labelled drug-drug interaction medication error