Onsior (robenacoxib) Tablets for Cats, 6-mg, 3 tablets

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About This Item

Details

Onsior tablets are a prescription non-narcotic, nonsteroidal anti-inflammatory (NSAID) medication that helps control postoperative pain and inflammation associated with declawing, spaying, and neutering in pets 5.5 pounds or more and four months of age or older, for a maximum of three days.We directly source prescription medications from manufacturers and wholesale distributors registered with the FDA and licensed by applicable state boards. Guaranteed genuine, and where applicable, backed by the manufacturer.

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Learn More About Onsior From Our Team of Experts
4.6
Rated 4.6 out of 5 stars
182 Ratings

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Ease of Use

76% Positive

Effectiveness

87% Positive

Ingredients

83% Positive

Long-Term Benefits

83% Positive

85 Customer Reviews



Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.

Rated 3 out of 5 stars
By Seth on Oct 18, 2025

Didn't see that effective for FIC

My vet suggested this for my cat who just got diagnosed with an inflamed bladder or FIC. Unfortunately, this didnt seem to provide much pain relief for him. I think

My vet suggested this for my cat who just got diagnosed with an inflamed bladder or FIC. Unfortunately, this didnt seem to provide much pain relief for him. I think it’s better suited for orthopedic issues like arthritis.


Rated 5 out of 5 stars
By Susan on Oct 12, 2025

Super fast shipping

My 15 year old cat is on hospice care for jaw bone cancer and this med is to help make him more comfortable until he gives me signs that he is ready to leave my

My 15 year old cat is on hospice care for jaw bone cancer and this med is to help make him more comfortable until he gives me signs that he is ready to leave my arms.


Rated 5 out of 5 stars
By Sara on May 27, 2025

It is definitely helping our cat with cancer pain

My cat had surgery for a chondosarcoma that the vet was unable to remove. Between postoperative pain and pain from the cancer itself, I was very worried that Onsior

My cat had surgery for a chondosarcoma that the vet was unable to remove. Between postoperative pain and pain from the cancer itself, I was very worried that Onsior would not be enough. The first five days after surgery were very tough, but after recovering from surgery this medication has given my kitty a return to his normal life for now. Onsior has given him the ability to play and jump up on furniture and counters like his old self before the cancer. Normally cats shouldn't stay on this medication longer than 3-6 days because it can be hard on the kidneys, but sadly my kitty does not have a good prognosis, so his kidney functions aren't the primary concern. Pain is the primary concern, and this medication has done wonders, far better than what I expected.


Rated 5 out of 5 stars
By Just me on Aug 26, 2025

It's recommended by DVM

Contains appealing flavor fir pet, so no need to hide it in food, crush it, etc. Pet eats it immediately as is.

Contains appealing flavor fir pet, so no need to hide it in food, crush it, etc. Pet eats it immediately as is.


Rated 5 out of 5 stars
By Andrea on Aug 16, 2025

Easy to dose!

Really helpful for pain management, and since they’re made for cats, they’re the right size, and it makes pilling so easy!

Really helpful for pain management, and since they’re made for cats, they’re the right size, and it makes pilling so easy!


Rated 1 out of 5 stars
By Susan on Sep 4, 2025

Shipped late

I called the pharmacy and they had the RX but took 3 days to ship. I didn't need it by then.

I called the pharmacy and they had the RX but took 3 days to ship. I didn't need it by then.


Rated 3 out of 5 stars
By Lindy on Jul 1, 2025

This medicine helped his joint pain.

But I can only give it to him about 3 days. Beyond that he stops eating starts vomiting. He does not vomit normally, it is very unusual for him to do so.

But I can only give it to him about 3 days. Beyond that he stops eating starts vomiting. He does not vomit normally, it is very unusual for him to do so.


Rated 4 out of 5 stars
By Milenda on Jul 3, 2025

Better pricing then Vet

Price was great but one pack did nothing at all. No help from all 3 pills; Not sure if old or what. 2nd pack of 3 worked right away.

Price was great but one pack did nothing at all. No help from all 3 pills; Not sure if old or what. 2nd pack of 3 worked right away.


Rated 5 out of 5 stars
By Diana on Oct 7, 2025

They work

They seem to help with her pain from arthritis

They seem to help with her pain from arthritis


Rated 5 out of 5 stars
By Sheila on Aug 16, 2025

Good people

Would high recommend they sent the medicine out right away.

Would high recommend they sent the medicine out right away.