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Onsior Tablets for Cats

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About this product

What is Onsior?

Onsior is a non-steroidal anti-inflammatory drug (NSAID) that relieves pain and reduces inflammation associated with orthopedic and soft tissue surgery. The small, flavored tablets are favored by cats and are easy to administer. Onsior for Cats is available in a 6-mg, 3 tablet packet. Onsior for Cats requires a prescription from your veterinarian.

For:

Cats (4+ months of age, weighing 5.5+ lbs)

Benefits:

  • Single dose quickly alleviates acute pain for 24 hours
  • Relieves pain associated with orthopedic and soft tissue surgery
  • Tasty flavored tablets
  • Available in a 6-mg, 3 tablet packet

How does Onsior work?

Onsior contains the active ingredient robenacoxib, an NSAID (non-steroidal anti-inflammatory drug) that targets the COX-2 enzyme that causes pain. It spares the COX-1 enzyme to protect your pet's gastrointestinal tract and blood platelet functions. The tablet is quickly absorbed from the gastrointestinal tract and is effective for 24 hours.

Cautions:

For cats only. Not for human use. Do not use with pregnant or lactating pets or those suffering from ulcers. Do not increase the dose, frequency, or length of time you administer Onsior, unless directed by your vet. Keep out of reach of children and pets. In case of accidental overdose, contact a health professional immediately.

Brand Name:

Onsior (Elanco)

What is the most important thing I should know about Onsior?

Onsior is used in pets for the control of postoperative pain and inflammation associated with orthopedic surgery. It can also be prescribed for other kinds of pain. The maximum duration of therapy is 3 days. The active ingredient in Onsior is robenacoxib. Onsior is a prescription medication. Onsior is a non-narcotic, non-steroidal anti-inflammatory drug (NSAID) and is usually given by mouth 1 time daily with or without food. This medication should not be used for more than 3 days. Exceeding the dose or duration of therapy may result in very serious life-threatening adverse reactions. Onsior should not be given with other NSAID medication or corticosteroid medication. If any signs of adverse reaction or intolerance occurs stop medication and contact your veterinarian immediately.

What should I discuss with my veterinarian before giving Onsior to my pet?

Tell your veterinarian about any side effects your pet has previously experienced from Onsior or other NSAIDs, as well as any digestive upset (vomiting or diarrhea) your pet has had. Tell your veterinarian if your pet has cardiovascular, kidney or liver disease, or any other medical problems or allergies that your pet has now or has had in the past. Disclose all medications that you are giving your pet or plan to give your pet, including those you can get without prescription and any dietary supplements. Tell your veterinarian if you plan to breed your pet, or if your pet is pregnant or nursing.

How should Onsior be given?

The usual dose of Onisor for Cats is one 6 mg tablet daily for cats weighing 5.5-13.3 lbs, and two 6 mg tablets daily for cats weighing 13.3-26.4 lbs. Administer Onsior for Cats tablets according to your veterinarian's directions, for a maximum of 3 days. Onisor for Cats should be given to your pet by mouth, with or without food.

What are the potential side effects of Onsior?

Contact your veterinarian if your pet has abdominal pain, tenderness, or discomfort, changes in appetite, bloody, black or tarry stools, blood in vomit, unexplained weight gain, water retention, fatigue or lethargy, skin rash, itching, yellowing of eyes, or unusual bruising or bleeding as these symptoms could indicate serious side effects. If any of the following serious side effects occur, stop giving Onsior and seek emergency veterinary medical attention: an allergic reaction (difficulty breathing, swelling of the lips, tongue or face, or hives). Other less serious side effects may occur. Talk to your veterinarian about any side effect that your pet experiences.

What happens if I miss giving a dose of Onsior?

Give the missed dose as soon as possible. If it is close to the time for the next dose, skip the missed dose and go back to the regular dosing schedule. Do not double the dose.

What happens if I overdose my pet on Onsior?

Contact your veterinarian or emergency veterinary clinic immediately.

What should I avoid while giving Onsior to my pet?

Do not give Onisor to pets weighing less than 5.5 lbs or that are younger than 4 months of age. Avoid giving Onisor to pets that have had an allergic reaction to robenacoxib. Avoid giving Onisor to pets that have had an allergic reaction (hives, facial swelling, or red/itchy skin) to aspirin or other NSAIDs. Do not give Onisor to pets that have a loss of appetite or decrease in appetite, bloody stool or vomit. Do not give to pets that are presently taking aspirin, NSAIDs or corticosteroids, have pre-existing kidney or liver conditions, or have a condition predisposing to dehydration.

What other drugs will affect Onsior?

Onsior should not be given with other non-steroidal anti-inflammatory drugs (NSAIDs - i.e. aspirin, meloxicam) or corticosteroids (i.e. prednisone).

See more

Onsior Directions:

  • Administer once a day at the same time of day for up to 3 days.
  • For oral use only. Do not divide or administer with other pain relievers.
  • Please Note: Onsior package has 6 blisters, but only 3 have the Onsior tablet inside.
Tip:

Give to your pet without food or with a small amount of food for easier dosing.

Onsior Dosage:

Onsior for Cats Dosage for Cats
Weight Dosage
5.5-13.3 lbs One 6 mg tablet daily or as directed by your veterinarian.
13.3-26.4 lbs Two 6 mg tablets daily or as directed by your veterinarian.
Onsior for Cats Dosage for Dogs
Dogs
Do not use!
Onsior for Cats Dosage for Horses
Horses
Do not use!

Storage:

Store at controlled room temperature, between 59° and 77°F. Do not use after expiration date. Keep out of reach of children and pets.

Onsior Ingredients:

Onsior for Cats 6 mg
Active Ingredients (per tablet) Amount
Robenacoxib 6 mg
Onsior for Dogs 10 mg
Active Ingredients (per tablet) Amount
Robenacoxib 10 mg
Onsior for Dogs 20 mg
Active Ingredients (per tablet) Amount
Robenacoxib 20 mg
Onsior for Dogs 40 mg
Active Ingredients (per tablet) Amount
Robenacoxib 40 mg
Product Details
plus minus

What is Onsior?

Onsior is a non-steroidal anti-inflammatory drug (NSAID) that relieves pain and reduces inflammation associated with orthopedic and soft tissue surgery. The small, flavored tablets are favored by cats and are easy to administer. Onsior for Cats is available in a 6-mg, 3 tablet packet. Onsior for Cats requires a prescription from your veterinarian.

For:

Cats (4+ months of age, weighing 5.5+ lbs)

Benefits:

  • Single dose quickly alleviates acute pain for 24 hours
  • Relieves pain associated with orthopedic and soft tissue surgery
  • Tasty flavored tablets
  • Available in a 6-mg, 3 tablet packet

How does Onsior work?

Onsior contains the active ingredient robenacoxib, an NSAID (non-steroidal anti-inflammatory drug) that targets the COX-2 enzyme that causes pain. It spares the COX-1 enzyme to protect your pet's gastrointestinal tract and blood platelet functions. The tablet is quickly absorbed from the gastrointestinal tract and is effective for 24 hours.

Cautions:

For cats only. Not for human use. Do not use with pregnant or lactating pets or those suffering from ulcers. Do not increase the dose, frequency, or length of time you administer Onsior, unless directed by your vet. Keep out of reach of children and pets. In case of accidental overdose, contact a health professional immediately.

Brand Name:

Onsior (Elanco)

What is the most important thing I should know about Onsior?

Onsior is used in pets for the control of postoperative pain and inflammation associated with orthopedic surgery. It can also be prescribed for other kinds of pain. The maximum duration of therapy is 3 days. The active ingredient in Onsior is robenacoxib. Onsior is a prescription medication. Onsior is a non-narcotic, non-steroidal anti-inflammatory drug (NSAID) and is usually given by mouth 1 time daily with or without food. This medication should not be used for more than 3 days. Exceeding the dose or duration of therapy may result in very serious life-threatening adverse reactions. Onsior should not be given with other NSAID medication or corticosteroid medication. If any signs of adverse reaction or intolerance occurs stop medication and contact your veterinarian immediately.

What should I discuss with my veterinarian before giving Onsior to my pet?

Tell your veterinarian about any side effects your pet has previously experienced from Onsior or other NSAIDs, as well as any digestive upset (vomiting or diarrhea) your pet has had. Tell your veterinarian if your pet has cardiovascular, kidney or liver disease, or any other medical problems or allergies that your pet has now or has had in the past. Disclose all medications that you are giving your pet or plan to give your pet, including those you can get without prescription and any dietary supplements. Tell your veterinarian if you plan to breed your pet, or if your pet is pregnant or nursing.

How should Onsior be given?

The usual dose of Onisor for Cats is one 6 mg tablet daily for cats weighing 5.5-13.3 lbs, and two 6 mg tablets daily for cats weighing 13.3-26.4 lbs. Administer Onsior for Cats tablets according to your veterinarian's directions, for a maximum of 3 days. Onisor for Cats should be given to your pet by mouth, with or without food.

What are the potential side effects of Onsior?

Contact your veterinarian if your pet has abdominal pain, tenderness, or discomfort, changes in appetite, bloody, black or tarry stools, blood in vomit, unexplained weight gain, water retention, fatigue or lethargy, skin rash, itching, yellowing of eyes, or unusual bruising or bleeding as these symptoms could indicate serious side effects. If any of the following serious side effects occur, stop giving Onsior and seek emergency veterinary medical attention: an allergic reaction (difficulty breathing, swelling of the lips, tongue or face, or hives). Other less serious side effects may occur. Talk to your veterinarian about any side effect that your pet experiences.

What happens if I miss giving a dose of Onsior?

Give the missed dose as soon as possible. If it is close to the time for the next dose, skip the missed dose and go back to the regular dosing schedule. Do not double the dose.

What happens if I overdose my pet on Onsior?

Contact your veterinarian or emergency veterinary clinic immediately.

What should I avoid while giving Onsior to my pet?

Do not give Onisor to pets weighing less than 5.5 lbs or that are younger than 4 months of age. Avoid giving Onisor to pets that have had an allergic reaction to robenacoxib. Avoid giving Onisor to pets that have had an allergic reaction (hives, facial swelling, or red/itchy skin) to aspirin or other NSAIDs. Do not give Onisor to pets that have a loss of appetite or decrease in appetite, bloody stool or vomit. Do not give to pets that are presently taking aspirin, NSAIDs or corticosteroids, have pre-existing kidney or liver conditions, or have a condition predisposing to dehydration.

What other drugs will affect Onsior?

Onsior should not be given with other non-steroidal anti-inflammatory drugs (NSAIDs - i.e. aspirin, meloxicam) or corticosteroids (i.e. prednisone).

See more
How to use
plus minus

Onsior Directions:

  • Administer once a day at the same time of day for up to 3 days.
  • For oral use only. Do not divide or administer with other pain relievers.
  • Please Note: Onsior package has 6 blisters, but only 3 have the Onsior tablet inside.
Tip:

Give to your pet without food or with a small amount of food for easier dosing.

Onsior Dosage:

Onsior for Cats Dosage for Cats
Weight Dosage
5.5-13.3 lbs One 6 mg tablet daily or as directed by your veterinarian.
13.3-26.4 lbs Two 6 mg tablets daily or as directed by your veterinarian.
Onsior for Cats Dosage for Dogs
Dogs
Do not use!
Onsior for Cats Dosage for Horses
Horses
Do not use!

Storage:

Store at controlled room temperature, between 59° and 77°F. Do not use after expiration date. Keep out of reach of children and pets.

Ingredients
plus minus

Onsior Ingredients:

Onsior for Cats 6 mg
Active Ingredients (per tablet) Amount
Robenacoxib 6 mg
Onsior for Dogs 10 mg
Active Ingredients (per tablet) Amount
Robenacoxib 10 mg
Onsior for Dogs 20 mg
Active Ingredients (per tablet) Amount
Robenacoxib 20 mg
Onsior for Dogs 40 mg
Active Ingredients (per tablet) Amount
Robenacoxib 40 mg
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Klaus94
5 years ago
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Breed American shorthair
Happy
My cat just got diagnosed with FIC which is a disease that causes bladder lining inflammation. She was so uncomfortable and couldn’t stop going to the bathroom. She would suddenly stop walking to lick herself because of pain in her lady area constantly. She couldn’t sleep or cuddle because of all this. We took her to the vet where she got her diagnosis and they gave her this medication. I’m not kidding when 30 minutes later she was curled up sleeping on the couch finally getting some rest. The next day she was still showing disease symptoms but in between she was able to sleep and rest. And she’s doing so much better 2 days later.
Thumbs up Would recommend this product
Helpful?
Mazer
7 years ago
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Breed DSH
After oral surgry
Was sent home with a packet of 3, 6mg. I've had my 11 y/o male DSH with bad oral history (I did not realize) for about 10 years. He's always been lovable, Simi - playful, and happy. Between the meds given before or during surgry and 1 dose of Onsior... my baby is a completely new family member. I'm sure the 3 teeth extracted completely released a lot of the pain. No adverse effects 24 hours and 1 dose into this recovery. He's almost ecstatic...100 x more lovable, not real playful yet, but that's ok if he's out of pain. Have nothing bad to say about this drug.
Thumbs up Would recommend this product
Helpful?
Joe Vogelman
8 years ago
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Breed Domestic Short Hair
No results
My cat has a leg injury and ONSIOR 6mg once a day for 3 days did nothing to relieve my cats leg pain, If there was a star less than one I would give this medicine a NEGATIVE ONE !!!!!!!!
Thumbs up Would not recommend this product
Helpful?
MoonFlowerMe
8 years ago
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Breed Feline Awesomeness
Arthritis in my 7 yr old cat's shoulder
This is the 2nd time Tabitha has been prescribed Onsior for arthritic pain in her shoulder. The last time she did 2 rounds of medication 3 weeks apart, so 6 tablets total. That was in September. It is now almost May and she just started showing signs that she was hurting again. She has had no adverse effects anytime she has to take this medicine and within a few hrs it is obviously working to alleviate her pain. I think considering how infrequently she needs it that the price is worth the relief she gets.
Review photo
Thumbs up Would recommend this product
Helpful?
redneckhippie
9 years ago
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Breed Calico Domestic Shorthairs
My cats thought it was a treat!
After my girls got fixed, the Vet sent us home with a few of these. I just held the pill in the palm of my hand, and they licked it up (even my little picky britches!). I didn't have to shove it down their throat or trick them into taking it!!! I really appreciated this. As far as pain management goes, they seem to be acting like themselves, and not hunkered over in pain or anything like that. I would recommend this for sure!
Thumbs up Would recommend this product
Helpful?
cat girl
10 years ago
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Breed DSH
Excellent pain medication
My cat has Vaccination fibrosarcoma which is a tumor that is growing aggressively due to vaccinations. She does not have much time left due to the size of this tumor (larger than a soft ball) but this medication allows her to walk and eat free of most pain.
Thumbs up Would recommend this product
Helpful?
sdgadgetgirl
10 years ago
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Works well for pain
My cat had a soft tissue injury on her front paw. This medication helped reduce the inflammation and helped with her pain. The injury is mostly resolved now but occasionally she has pain in that foot, so I keep this on hand. She doesn't mind the taste. I give it to her with a few pieces of dry food and she just licks it out of her food bowl. I'm so glad there is finally something for cats that have pain.
Thumbs up Would recommend this product
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ScotBriton
11 years ago
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Breed Norwegian Forestcat
Works wonders for my cat who has arthritis in his low back. 4 stars because of the high price!
Thumbs up Would recommend this product
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