Ascites after Deracoxib (Deramaxx) in dogs

The FDA has received 280 reports of ascites in dogs after Deracoxib. That is 2.5% of all reports for this medicine, compared with 0.2% across reports for all dog medicines, so it is reported unusually often with this medicine.

280Reports
12%Marked serious
2.9%Recovered
58%Died or euthanised
11 daysTypical onset
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How soon it started

Same day
2 8.7%
1–2 days
2 8.7%
3–7 days
5 22%
1–4 weeks
6 26%
Over a month
8 35%

How the animals did

Recovered
6 2.1%
Recovered with lasting effects
2 0.7%
Still unwell when reported
11 3.9%
Died
148 53%
Euthanised
15 5.4%
Not known
98 35%

Problems reported at the same time

Age of the animals

Under 1 year
4
1–3 years
51
4–7 years
94
8–11 years
99
12+ years
29

About this medicine

Deracoxib relieves pain and inflammation from arthritis or after surgery.

Products with this ingredient include Deramaxx. 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 Deracoxib cause ascites in dogs?
280 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 11 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).

Ascites with similar medicines

All reported side effects of Deracoxib in dogs · Medicines most reported with ascites