Didn't work as expected after Firocoxib (Previcox) in dogs

441 reports to the FDA describe didn't work as expected in dogs given Firocoxib. That is 5.5% of all reports for this medicine, compared with 13% across reports for all dog medicines, so it is reported less often than average with this medicine.

441Reports
12%Marked serious
3.4%Recovered
12%Died or euthanised
9 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
21 26%
1–2 days
8 9.9%
3–7 days
5 6.2%
1–4 weeks
15 19%
Over a month
32 40%

How the animals did

Recovered
13 2.9%
Recovered with lasting effects
2 0.5%
Still unwell when reported
33 7.5%
Died
43 9.8%
Euthanised
9 2.0%
Not known
341 77%

Problems reported at the same time

Age of the animals

Under 1 year
3
1–3 years
25
4–7 years
76
8–11 years
166
12+ years
153

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 didn't work as expected in dogs?
441 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 9 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).

Didn't work as expected with similar medicines

All reported side effects of Firocoxib in dogs · Medicines most reported with didn't work as expected