Hyperphosphataemia after Robenacoxib (Onsior) in cats
The FDA has received 106 reports of hyperphosphataemia in cats after Robenacoxib. That is 3.2% of all reports for this medicine, compared with 1.0% across reports for all cat medicines, so it is reported unusually often with this medicine.
106Reports
92%Marked serious
9.4%Recovered
49%Died or euthanised
2 daysTypical onset
Sponsored
How soon it started
How the animals did
Problems reported at the same time
Age of the animals
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 hyperphosphataemia in cats?
- 106 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 2 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).
Hyperphosphataemia with similar medicines
- Hyperphosphataemia after Meloxicam (Metacam) 562 reports · 15% of its reports
- Hyperphosphataemia after Carprofen (Rimadyl) 63 reports · 3.7% of its reports
All reported side effects of Robenacoxib in cats · Medicines most reported with hyperphosphataemia