Weakness after Deracoxib (Deramaxx) in dogs

The FDA has received 406 reports of weakness in dogs after Deracoxib. That is 3.7% of all reports for this medicine, compared with 1.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

406Reports
30%Marked serious
6.7%Recovered
49%Died or euthanised
12 daysTypical onset
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How soon it started

Same day
6 6.7%
1–2 days
11 12%
3–7 days
17 19%
1–4 weeks
20 22%
Over a month
35 39%

How the animals did

Recovered
24 5.9%
Recovered with lasting effects
3 0.7%
Still unwell when reported
34 8.4%
Died
151 37%
Euthanised
46 11%
Not known
148 36%

Problems reported at the same time

Age of the animals

Under 1 year
9
1–3 years
26
4–7 years
87
8–11 years
159
12+ years
122

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 weakness in dogs?
406 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 12 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).

Weakness with similar medicines

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