• Now safe for cats 4 months and older*

    3 days of pain relief, just where it’s needed

    * Use in cats ≥ 5.5 lbs (2.5 kg) and ≥ 4 months of age.

    Download new Onsior® (robenacoxib) PI
    Gray cat
  • Remedy for Relief

    We asked. Veterinarians confirmed.

    Onsior® (robenacoxib) makes the grade for veterinarians, pet owners, and patients!

    See the results
    Gray cat with butterfly
  • Relief. Just where it’s needed.

    Finally! 3 days of pain relief for cats.

    Download Onsior PI
    Orange cat

Pain delays recovery, impacts negatively on a patient's well being, and disturbs the bond with its owner and also the veterinary team.”

Sparkes, et al. ISFM and AAFP consensus guidelines: Long-term use of NSAIDs in cats. Journal of Feline Medicine and Surgery (2010) 12, 521-538.

Why choose Onsior® (robenacoxib)?

  • Demonstrated efficacy

  • 3-day use

  • Small, yeast-flavored tablets

  • Convenient for vets & owners

  • Safety and tolerability

Cat diagram

What is tissue selectivity?

Onsior (robenacoxib) works differently than other NSAIDs as demonstrated in a tissue cage model; clinical significance unknown.

Onsior safety and tolerability

Onsior is supported by a field study and safety studies of up to 6 months.

Onsior Box

Packaging and dosing

Onsior tablets are specially formulated for cats.