Onsior (robenacoxib) Rx
for Cats, 6mg Tablet
Starting At $3.92 per tablet
Onsior (robenacoxib) Rx
$3.92 per tablet
In StockFree shipping when you buy 16 or with a $59 order
Usually ships the same weekday before 3pm CT with veterinary approval.
Requires veterinary authorization.
Your pet's veterinarian will provide directions for use.
What are Onsior Tablets for Cats and Dogs?
- Onsior is a prescription nonsteroidal antiinflammatory drug (NSAID) used to relieve pain and inflammation.
- The drug in Onsior is Robenacoxib.
Why do cats and dogs use Onsior?
- Onsior is one of the only NSAID medications available to treat pain and inflammation in cats.
- Onsior may also be prescribed for cats and dogs recovering from surgery or soft tissue injury.
What else should I know about Onsior?
- Flavored tablets for easier dosing.
- Effective pain reliever for cats.
- Eases pain due to orthopedic surgery and soft tissue damage.
- Does not contain steroids.
- Onsior 10 mg, 20 mg, and 40 mg tablets for dogs have been discontinued by the manufacturer.
What problems could my dog or cat have with Onsior?
- Onsior tablets for dogs should not be given to cats as the larger milligram tablets will be too hard to dose.
- Giving cats Onsior for more than three days increases the risk of serious side effects.
- Call your veterinarian immediately if you see decreased appetite, vomiting, changes in bowel movements, changing in drinking or urination, changes in behavior, seizures, or jaundice.
How do you use Onsior?
- Give Onsior tablets by mouth as directed by your veterinarian.
- Pregnant women, especially if close to term, should be very careful when handling Onsior.
What is in Onsior?
- The drug in Onsior is Robenacoxib, a nonsteroidal antiinflammatory drug (NSAID) of the coxib class.
- Coxib class NSAIDs inhibit cyclooxygenase, reducing the production of prostaglandins that lead to inflammation.
Will I get what I see in the picture?
- Onsior is a brand name. You will receive the exact brand that you request.
Is it important for my dog or cat to finish all of the Onsior?
- Dogs and cats may use Onsior for different lengths of time. Please consult your veterinarian if you have any questions.
15 total reviews
Rated 4.40 out of 5 stars
0% of respondents would recommend this to a friend
12 5 star reviews
1 4 star reviews
0 3 star reviews
0 2 star reviews
2 1 star reviews
Most Liked Positive Review
Saved my cats life
Honestly, like nsaids in humans, Onsior does carry some risks. However, for my immune-suppressed cat, it's a literal life saver. She often has fever of unknown origin, sometimes as high as 106+. Intravenous fluids, other medications, nothing else touches her fever. Cats can decline very quickly, and with high fever they often will not eat or drink, as is the case with my cat. Onsior is the only medication that breaks her fever, and makes her feel better. She is able to eat and drink until she is strong enough to make it through the episode. Literal life saver for us.
Most Liked Negative Review
not good news
Took my 12 yr. old cat to vet today with swollen left neck. His organs all felt good. He is diabetic & has shots 2x a day. He prescribed the 3 tablet Onsior & Clavamox. He had the first pill @ 11:30 a.m. At 9:30 p.m., he had a violent seizure & I thought I was going to lose him. He finally settled down but has not gotten up & walked yet. He has never had a seizure before..I will call the vet tomorrow but I will not be giving him the other 2 pills. I feel that it is the cause, as it is one of the "adverse" reactions. He is a large, 16 # cat, so hopefully, he will pull through.
Terrible to deal withFrom PennsylvaniaComments about Onsior (robenacoxib)I would give zero stars if possible! Absolutely no effort to make sure they got the vet approval for the medicine. I don't even understand how you can operate this way.
Her mood and well-being have increasedFrom UndisclosedComments about Onsior (robenacoxib) for Cats, 6mg TabletThis is the last medicine my cat could take for pain and it is very good. The only downside is price.
Pain Meds for my CatFrom UndisclosedComments about Onsior (robenacoxib) for Cats, 6mg TabletPeople there were very courteous. Felt like I doing business with local folks I've known a good while. I reckon I'll be doing my buying here now.
I will be buying this product againFrom UndisclosedComments about Onsior (robenacoxib)My cat has mouth cancer that is terminal. I give him this med daily for pain and swelling....great drug.
Definitely helpfulFrom UndisclosedComments about Onsior (robenacoxib)Onsior definitely helps to manage my pets pain. Vet RX made ordering quick and easy!
Great in every way.From UndisclosedComments about Onsior (robenacoxib)VetRx has been wonderful every time I have ordered Onsior for my cat. I have needed to contact customer service several times (ie. Re the prescription from my vet) and they have so helpful. And the meds arrive so quickly. I wouldn't think of ordering my cat's meds from anywhere else.
I'll continue to purchase this for quality of life.From UndisclosedComments about Onsior (robenacoxib)This has extended my cat's quality of life. I do not think that he would still be alive if not for this medication.
I would love to buy this product again!From UndisclosedComments about Onsior (robenacoxib)Quick delivery and helped my cat's arthritis pain tremendously.
Good for treating pain.From undisclosedComments about Onsior (robenacoxib)This has really helped my senior cat who has arthritis.
Yes, I would buy it again.From undisclosedComments about Onsior (robenacoxib)It was recommended for Garfield by his Vet. Easy to apply and tolerated well by my feline friend. VetRXDirect prices are much more affordable than the Vet.
Displaying Reviews 1 - 10
Q & A
How many times a year can you give your cat the 3 day dosage??
Under the guidance of a veterinarian, Onisor may be used in an extra-label manner (not consistent with manufacturer labeled directions), based on the individual needs of your cat. There is no data to set a maximum number courses prescribed per year. Please consult your veterinarian regarding Onsior as they will have the most comprehensive medical history for your cat.Verified Answer
can onisor 6 mg for cats used on my dog, she is same weight?
Please contact your veterinarian regarding appropriate dosing of this medication in your cat.Verified Answer
side effects for onsior robenacoxib for cats?
The most common side effects noted with Onsior are vomiting, diarrhea, decreased appetite, dark or tarry stools, increased water consumption, and increased urination. If any of these persist or happen multiple times per day, you should stop the medication and contact your veterinarian immediately. This medication is only approved by the FDA in cats for short term use (6 days or less), however if your cat is on this medication long term, they should be regularly monitored for any of these side effects. Thank you, VetRxDirectVerified Answer
Is Onsior compatible in diabetic patients? Primarily, Prozinc? Thanks!?
Robenacoxib (Onsior) is a non-steroidal anti-inflammatory drug (NSAID) used for pain management in cats. Currently there is no data stating that onsior cannot be used in diabetic cats. There is also no known drug interactions between onsior and prozinc insulin. Talk with your veterinarian to determine if Onsior is the best treatment option for your cat. Thank you, VetRxDirectVerified Answer
Side effects? After giving first dose, my kitten passed out (fell asleep & doesn't want to wake up like a teenager). Is that normal for her to fall asleep so heavily? I'm assuming just from exhaustion from being in pain, just want to double check. ?
I would read the package insert with the RX information for side effects. Never take someone's word on a subject because not all cats react the same to a prescription. (The link below is identical to my insert that I received from my vet.) Renal failure is always a risk with pain relievers and cats. But on the brighter side, My cat had an injury and our vet prescribed this for his pain, and it is such a low dose that the weight of my cat was able to handle it. I don't know about a kitten. I do believe it helped with my cats inflammation and pain that he was having, because he did show improvements after taking it. Getting up, moving around more. I would 100% recommend this product for people like me with older animals. My only complaint is that the vet sticker they gave me does not say how long it takes to expire. Its expiration is blank. So I'm hopeful that because they are in sealed foil pill pockets that they would last the normal shelf life of a human medicine. But anyone with an accurate answer feel free to respond. I am very glad to find this same medicine, which works, without the huge vet bill. https://vetrxdirect.naccvp.com/index.php?u=country&p=msds&prodnum=1131031&id=1131031&m=product_basic_viewCommunity Answer
Rosey, Onsior (robenacoxib) has the potential for causing lethargy or decreased activity while on the medication. Drowsiness or dizziness is not noted as a potential adverse effect. If the pain has hindered your cat’s ability to fall asleep then this pain-relieving medication may help your pet sleep. If drowsiness or decreased activity persists please follow up with your veterinarian. Thank you, VetRxDirectCommunity Answer
Can a cat die from this drug??
Pamela, We are sorry to hear about your cat. Onsior is a potent NSAID and is labeled specifically for the relief of pain during and after surgery or other painful procedures, for a maximum of three days. Onsior can cause side effects that could lead to death in a cat. This is usually due to an underlying disease which may or may not have been previously diagnosed by your pet's veterinarian. Take care, VetRxDirectCommunity Answer
Displaying Questions 1 - 6