Loose stool after Firocoxib (Previcox) in dogs

The FDA has received 104 reports of loose stool in dogs after Firocoxib. That is 1.3% of all reports for this medicine, compared with 0.9% across reports for all dog medicines.

104Reports
22%Marked serious
11%Recovered
15%Died or euthanised
6 daysTypical onset
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How soon it started

Same day
8 22%
1–2 days
6 16%
3–7 days
8 22%
1–4 weeks
12 32%
Over a month
3 8.1%

How the animals did

Recovered
11 11%
Still unwell when reported
7 6.7%
Died
14 13%
Euthanised
2 1.9%
Not known
70 67%

Problems reported at the same time

Age of the animals

Under 1 year
2
1–3 years
8
4–7 years
20
8–11 years
34
12+ years
34

About this medicine

Firocoxib relieves pain and inflammation from arthritis.

Products with this ingredient include Previcox. 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 Firocoxib cause loose stool in dogs?
104 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).

Loose stool with similar medicines

All reported side effects of Firocoxib in dogs · Medicines most reported with loose stool