Firocoxib (Previcox) side effects in horses
497 reports sent to the FDA between 2007 and 2026 involve Firocoxib in horses. The most reported problems were swelling, loss of appetite, lethargy. 35% were marked serious, and where it was recorded, signs eased after stopping the medicine in 75% of cases.
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.
Most reported side effects
Share = percentage of this medicine's reports that mention the problem. One report can list several problems.
Reports that it didn't work
Some reports are about the medicine not working (for example a horse still getting fleas or heartworm), not about a side effect.
How soon problems started
Time from the first dose to the first sign, where both dates were reported (304 reports).
How the animals did
Breeds named most often
Popular breeds appear more often because there are more of them.
- Quarter Horse 121 reports
- Horse 114 reports
- Thoroughbred 44 reports
- Paint 26 reports
- Arab 18 reports
- Horse (other) 15 reports
- Hanovarian 13 reports
- Warmblood 12 reports
- Tennessee Walking Horse 9 reports
- Miniature 9 reports