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Onsior is one of the safest medications of its type for use in cats and dogs. For dogs, it is used primarily to treat osteoarthritis (degenerative joint disease). It reduces pain and stiffness, increasing their mobility and enjoyment of exercise. Onsior can also be an effective treatment for the relief of pain and inflammation of other causes in both cats and dogs.
Onsior should not be given to animals which are dehydrated, or if underlying kidney or gastro-intestinal conditions might be present. Treatment should be suspended if vomiting or diarrhoea are seen.
Browse more prescription medication and cat and dog joint care.
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Winston eats the tasty tablets as he enjoys the taste. He seems more lively & playful after consumptiot
Customer recommends this product
Suits maleck far better than metacam. No upset tummy ( he's a big guy to have a bad belly) and a much happier chap
Customer recommends this product
Really helpful to my 14 year old dog . He’s enjoying his walks again .
Customer recommends this product
Excellent product and must taste good as she just eats it like a treat
Customer does not recommend this product
Since our dog Charlie has been on onsior his back pain is kept to minimal.
Customer recommends this product
Below are some recent questions we've received regarding Onsior for Cats & Dogs, including answers from our team.
Pete Sutcliffe
The dosing instructions state this should not be given with food. Is there a time duration that this shouldn’t be given before or after food?
You should discuss the exact time period with your vet, however the datasheet states the following:
Do not administer with food since clinical trials demonstrated better
efficacy of robenacoxib for osteoarthritis when administered without
food or at least 30 minutes before or after a meal.
Lizzie Cameron
Can naf canine relief be used with onsior ?
NAF Canine contains devils claw which does have anti-inflammatory properties. There is not enough research into devils claw to show how it does this so I do not recommend using them both together just in case they have a similar mode of action. If your dog is affected by arthritis then I advise using a joint supplement alongside the Onsior. I recommend reading our blog 'Arthritis in pets - prevention & management' for a useful guide on this.
Andrea Taylor
I currently dose in the evening but wish to change to morning. What is the safest way to achieve this? Should I miss a dose out then resume from morning.
You should never exceed your vet's recommended doseage with this medication, therefore it is safest to miss one dose (in the evening) then resume the following morning.
Dorcas ODell
What is the correct dosage for a 22kg dog who has joint pain please.
Pasted below are the recommended doseages as found on the data sheet:
Number of Tablets by Strength and Body Weight for Osteoarthritis
Body Weight (kg) | Number of Tablets by Strength | |||
5 mg | 10 mg | 20 mg | 40 mg | |
2.5 to <5 | 1 tablet | |||
5 to <10 | 1 tablet | |||
10 to <20 | 1 tablet | |||
20 to <40 | 1 tablet | |||
40 to 80 | 2 tablets |
Number of Tablets by Strength and Body Weight for Soft Tissue Surgery
Body Weight (kg) | Number of Tablets by Strength | |||
5 mg | 10 mg | 20 mg | 40 mg | |
2.5 | 1 tablet | |||
>2.5 to <5 | 1 tablet | |||
5 to <10 | 1 tablet | |||
10 to <20 | 1 tablet | |||
20 to <40 | 2 tablets | |||
40 to <60 | 3 tablets | |||
60 to 80 | 4 tablets |
Cherry Welsh
I would be grateful if you could tell me if there is any significant difference between these 2 drugs regarding their safety and effectiveness in treating osteoarthritis.
My dog had Onsior for a few weeks and it didn't seem to make much difference.
With thanks
These are both effective normally at reducing the discomfort from osteoarthritis. I am not aware of any scientific investigations conducted to try and compare them in this way, but they are both generally regarded as about equally safe and effective based on anecdotal evidence. Some dogs might happen to respond better to one drug than another, but I do not think that is particularly likely. I would have to question if the symptoms you are noticing are genuinely caused by the osteoarthritis which has been identified. Obviously I cannot tell and indeed it might be very difficult to be sure, but I would say that sometimes osteoarthritis can exist without causing obvious trouble for the dog. Another, unidentified condition could be causing trouble now, rather than the osteoarthritis. My first suggestion would be to re-evaluate the diagnosis, which obviously means going back to your vet. If nothing else is identified, then perhaps just try a different drug as well as doing all you can in other ways to help. Joint supplements such as Yumove or Joint Force are widely believed to be able to help. It is also helpful to encourage regular, gentle exercise (but never excited, strenuous or prolonged). Weight loss through food reduction is for some dogs the most beneficial thing you can do, but that depends on the current bodyweight and other factors. All else being equal though, you aim for a slim dog. It is always possible through simply giving less food, but that is very difficult for many people in practice.
Neil
Can this be given at the same time as yumove?
It is very common to use a prescription, anti-inflammatory drug such as Onsior along with a non-prescription, joint supplement such as Yumove. Many vets do recommend this and it is safe. Other measures can involve restricting food levels a bit to help keep body weight down as well as encouraging regular but gentle exercise.
Gilly Peters
Hector is on constant Onsior, 1 tablet per day, but today we both inadvertently dosed him, so he has taken 2. Could this be dangerous? He seems hyper and a bit "whiney" (He is a 30kg Lab/lurcher).
This is unlikely to cause trouble, but it certainly could. If your dog shows any vomiting or diarrhoea it is important not to give any more tablets and go straight to your vet. If he seems fine then all should be well. I would be tempted to miss out the next dose though.
Deanna
Hello there
My dog has just been diagnosed with Elbow Dysplasia and has been given these Onsior tablets (40mg) to take.
We was wondering if we can also give him some herbal tablets too, as we gave him them before and seemed to help him, however we do not want any weird side effects.
Thank you for your help
Deanna Miller
Most herbal tablets appear to be safe and can be given alongside Onsior, but they have not all been tested and there is no scientific confirmation of that initial comment. Personally I would be happy for you to give any of the main brand herbal products at the recommended amount alongside Onsior. As long as your dog is otherwise well, it is very unlikely that there would be any sort of adverse reaction.The glucosamine/chondroitin based supplements, such as Joint Force, are regarded as particularly suitable to add to the treatment.
Lexie
My dog has been taking on onsior and is doing her leg good, can you please tell me if it has any side effects as she is losing her coat, it started with a lilltle bald patch on her back but now it's coming out on her chest
Please help
Thank you
Onsior can occasionally have side effects, but hair loss is very unlikely to be due to the Onsior. It is much more likely to be a coincidence that the hair loss is occurring at the same time. I would make sure that your flea control measures are adequate, even if you see no fleas, and take your cat to the vet to be checked out for any other causes. (A flea allergy would be a very common cause for hair loss on cats, and can happen with very few fleas which are difficult to see.)
Berriewood Wholesale has been working alongside VioVet to bring you a wider range of products, including prescription medications. Berriewood Wholesale has been owned and run by VioVet since 2015, and has been operating since then from the same premises in Luton, Bedfordshire.
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