Pain
Onsior for cats
Short-course pain and inflammation following soft-tissue surgery or musculoskeletal injury in cats. Active ingredient: robenacoxib.
6
VMD-approved UK pharmacies we compare
Live pricing refresh in progress
POM-V
Distribution category
Written prescription required (CMA cap £21)
3
indicated conditions in this catalogue
Source: UK datasheets + VMD register
Onsior prices at VMD-approved UK pharmacies
Sorted by price, cheapest first. We never sort by commission.
Last refreshed: 17 May 2026. Always confirm the current price on the pharmacy site before purchase, pharmacies reprice continuously.
Conditions Onsior is used for
- post-surgical pain
- musculoskeletal pain
- acute inflammation
Not medical advice. Always follow your prescribing vet's instructions and read the patient information leaflet.
Frequently asked questions
- Is Onsior for cats the same as the version my vet dispenses?
- Yes. UK VMD-approved online pharmacies dispense the same manufacturer-branded product in identical packaging as your vet practice. The supply chain origin is the manufacturer in both cases. The Veterinary Medicines Directorate inspects every approved online pharmacy on the same cycle as a practice dispensary.
- When will live Onsior pricing be available on Vet Bill Saver?
- Cat medication pricing rolls out through summer 2026 (D2). Sign up on this page and we will email you the moment Onsior pricing goes live at any of the six VMD-approved UK online pharmacies.
- Do I need a prescription to order Onsior for cats?
- Yes. Onsior is a POM-V product and requires a written prescription from a UK-registered vet. From 23 September 2026 the CMA Order caps the prescription fee at £21 for the first medicine plus £12.50 per additional medicine on the same prescription.
Other pain medications for cats
Pain
Metacam
Chronic pain and inflammation from osteoarthritis and other musculoskeletal disease in cats, dosed via oral suspension.
Pain
Vetergesic
Acute moderate-to-severe pain in cats, typically administered by the vet as an injection. Schedule 3 controlled drug.
Pain
Tramadol
Moderate pain in cats, used off-label where licensed alternatives are not appropriate. Controlled drug, 28-day prescription validity.
Pain
Solensia
Monthly anti-NGF monoclonal antibody injection for osteoarthritis pain in cats, administered by the vet.
Pain
Gabapentin
Used in cats for chronic neuropathic pain and as a situational sedative for vet visits and travel.