Decreased urine concentration after Firocoxib (Previcox) in dogs

174 reports to the FDA describe decreased urine concentration in dogs given Firocoxib. That is 2.2% of all reports for this medicine, compared with 0.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

174Reports
33%Marked serious
13%Recovered
14%Died or euthanised
6 daysTypical onset
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How soon it started

Same day
3 4.2%
1–2 days
9 13%
3–7 days
36 51%
1–4 weeks
8 11%
Over a month
15 21%

How the animals did

Recovered
19 11%
Recovered with lasting effects
3 1.7%
Still unwell when reported
19 11%
Died
14 8.0%
Euthanised
11 6.3%
Not known
108 62%

Problems reported at the same time

Age of the animals

Under 1 year
3
1–3 years
12
4–7 years
34
8–11 years
87
12+ years
37

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 decreased urine concentration in dogs?
174 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).

Decreased urine concentration with similar medicines

All reported side effects of Firocoxib in dogs · Medicines most reported with decreased urine concentration