Duodenal ulcer after Carprofen (Rimadyl) in dogs

55 reports to the FDA describe duodenal ulcer in dogs given 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.

55Reports
89%Marked serious
18%Recovered
47%Died or euthanised
6 daysTypical onset
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How soon it started

Same day
5 12%
1–2 days
6 14%
3–7 days
14 33%
1–4 weeks
11 26%
Over a month
7 16%

How the animals did

Recovered
10 18%
Still unwell when reported
16 29%
Died
9 16%
Euthanised
17 31%
Not known
3 5.5%

Problems reported at the same time

Age of the animals

Under 1 year
1
1–3 years
14
4–7 years
21
8–11 years
14
12+ years
5

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 duodenal ulcer in dogs?
55 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 6 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).

Duodenal ulcer with similar medicines

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