Collapse after Carprofen (Rimadyl) in dogs

866 reports to the FDA describe collapse in dogs given Carprofen. That is 1.8% of all reports for this medicine, compared with 0.9% across reports for all dog medicines, so it is reported unusually often with this medicine.

866Reports
34%Marked serious
5.8%Recovered
53%Died or euthanised
9 daysTypical onset
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How soon it started

Same day
63 22%
1–2 days
34 12%
3–7 days
41 14%
1–4 weeks
64 22%
Over a month
87 30%

How the animals did

Recovered
47 5.4%
Recovered with lasting effects
3 0.3%
Still unwell when reported
107 12%
Died
379 44%
Euthanised
76 8.8%
Not known
254 29%

Problems reported at the same time

Age of the animals

Under 1 year
30
1–3 years
60
4–7 years
125
8–11 years
342
12+ years
301

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 collapse in dogs?
866 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 9 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).

Collapse with similar medicines

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