Behaviour change after Deracoxib (Deramaxx) in dogs

282 reports to the FDA describe behaviour change in dogs given Deracoxib. That is 2.6% of all reports for this medicine, compared with 2.5% across reports for all dog medicines.

282Reports
29%Marked serious
12%Recovered
22%Died or euthanised
6 daysTypical onset
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How soon it started

Same day
18 25%
1–2 days
11 15%
3–7 days
14 20%
1–4 weeks
12 17%
Over a month
16 23%

How the animals did

Recovered
32 11%
Recovered with lasting effects
3 1.1%
Still unwell when reported
27 9.6%
Died
45 16%
Euthanised
17 6.0%
Not known
158 56%

Problems reported at the same time

Age of the animals

Under 1 year
10
1–3 years
51
4–7 years
55
8–11 years
96
12+ years
63

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 behaviour change in dogs?
282 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).

Behaviour change with similar medicines

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