Hypothermia after Robenacoxib (Onsior) in cats

97 reports to the FDA describe hypothermia in cats given Robenacoxib. That is 3.0% of all reports for this medicine, compared with 1.2% across reports for all cat medicines, so it is reported unusually often with this medicine.

97Reports
80%Marked serious
18%Recovered
46%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
50 54%
1–2 days
23 25%
3–7 days
12 13%
1–4 weeks
6 6.5%
Over a month
1 1.1%

How the animals did

Recovered
17 18%
Still unwell when reported
23 24%
Died
22 23%
Euthanised
23 24%
Not known
12 12%

Problems reported at the same time

Age of the animals

Under 1 year
21
1–3 years
19
4–7 years
23
8–11 years
15
12+ years
15

About this medicine

Robenacoxib relieves pain and inflammation (short courses).

Products with this ingredient include Onsior. 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 Robenacoxib cause hypothermia in cats?
97 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 the same day 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).

Hypothermia with similar medicines

All reported side effects of Robenacoxib in cats · Medicines most reported with hypothermia