Buy Onsior from Canada

What is Onsior?

Onsior (robenacoxib) is a pain-relief and anti-inflammatory treatment made for cats. It helps reduce pain and swelling after surgery, such as spaying, neutering, or bone surgery.

Vets often choose Onsior because it works fast and is one of the only approved options for short-term pain relief in cats.

You can find it in two forms: flavored tablets and an injection. The injection is usually given at the veterinarian clinic, while the tablets can be given at home. This makes it easier for cat owners to care for their pets after surgery.

Onsior for kittens may be considered, but only if they meet the minimum age and weight requirements.

While Onsior is primarily used for pain relief after surgery, some veterinarians may also use it off-label for short-term injuries or arthritis pain in certain cases.

How Does Onsior Work?

The active ingredient in Onsior is called robenacoxib. This is a type of NSAID, which stands for non-steroidal anti-inflammatory drug.

NSAIDs work by blocking certain chemicals in the body that cause pain and swelling. Onsior is safe for cats that weigh at least 5.5 pounds and are at least 4 months old. Vets usually give it for up to 3 days after surgery.

For cats weighing between 5.5 and 13.2 pounds, the usual dose is one 6 mg tablet per day. Heavier cats may need two tablets.

Onsior Dosage and Administration

Administering the correct Onsior dosage to your cat is important for managing pain safely after surgery or injury. Onsior tablets for cats are used once daily for up to 3 days to help reduce pain and swelling.

It is approved for cats that are at least 4 months old and weigh 5.5 pounds or more. Onsior can be administered orally or as an injection, but it should not be given in both forms on the same day.

Dosage Form and Strengths of Onsior

Onsior is available in flavored tablets and injections that are easy to administer. Use the tablets orally; do not break or split them in half.

Onsior tablets for cats are available in:

• 6 mg flavored tablets
• Tablets are not scored and must be given whole

Onsior injection for cats is given by a veterinarian before surgery

How to Administer Onsior for Cats?

Giving Onsior tablets for cats is simple. Follow these steps for safe and effective use:

• Give Onsior by mouth, once a day
• Do not split or crush the tablet
• Give with or without food
• Give the first dose about 30 minutes before surgery, if directed
• Only give it to cats that are 5.5 pounds or heavier
• Do not give for more than 3 days in a row
• Use the tablet or injection, but not both, on the same day

Onsior Dose Chart

Side Effects of Onsior

While Onsior helps manage pain and swelling in cats, it can also cause side effects. Most Onsior side effects in cats are mild and go away after stopping the tablets.

However, serious side effects can happen and may lead to health problems like kidney or liver damage.

If your cat appears unwell, stop giving the tablets and contact your veterinarian immediately.

Common Side Effects

These mild side effects usually go away once the cat finishes treatment:

• Less interest in food
• Vomiting
• Loose or soft stool
• Low energy or tiredness
• Change in behavior, like acting restless

Severe Side Effects

Call your veterinarian right away if you see any of these serious symptoms:

• Blood in urine
• Trouble breathing
• Yellow eyes or gums (a sign of liver trouble)
• Unusual bleeding or bruising
• Signs of kidney issues (like less urination or drinking less water)
• Loss of balance or walking strangely
• Sudden collapse or death (rare but possible)

Important Safety Considerations for Using Onsior

Before giving Onsior to your cat, it is important to understand how to use it safely. Onsior can help reduce pain and swelling after surgery, but like all medications, it carries some risks.

Some cats may experience mild side effects, such as vomiting or low energy, while others may have more serious problems, including kidney or liver issues.

Follow your veterinarian’s directions and inform them if your cat has a history of past health concerns. Use the lowest effective dose for the shortest time needed.

• Do not give Onsior to cats younger than 4 months or weighing less than 5.5 pounds
• Do not use Onsior in cats with kidney, liver, or heart disease
• Never give Onsior with other NSAIDs or corticosteroids
• Do not give Onsior to cats with a history of allergic reactions to NSAIDs
• Stop using Onsior if your cat stops eating or seems very tired
• Tell your veterinarian if your cat has vomiting, diarrhea, or bloody stool before starting Onsior
• Always give Onsior as your veterinarian prescribes, only once daily, and for no more than 3 days
• Do not break or crush the tablets, and give them whole by mouth
• Do not give Onsior to pregnant or nursing cats or cats used for breeding
• Make sure your cat is well hydrated during treatment
• Monitor your cat for changes in appetite, behavior, or bathroom habits
• Keep Onsior tablets away from children and other pets
• Do not use Onsior in humans; call a doctor if it is  accidentally swallowed
• Talk to your veterinarian about any other drugs or supplements your cat takes
• Use fluid therapy during surgery to protect your cat’s kidneys
• Tell your veterinarian if your cat has ever had seizures, balance problems, or vision changes
• Onsior may not be safe if used with other drugs that affect the heart rhythm
• Watch for signs of stomach ulcers or bleeding, like dark stool or vomiting blood
• Never switch between Onsior and another NSAID without a proper washout period

Onsior Interactions

Before giving Onsior to your cat, inform your veterinarian about all the medications and supplements your cat is currently taking.

Onsior can interact with other drugs and may not be safe to use at the same time as certain treatments. Using Onsior with some medications can raise the risk of side effects or reduce how well the drugs work.

• Other NSAIDs like meloxicam
• Prednisolone
• Baby aspirin
• Depo-Medrol injections
• Budesonide
• ACE inhibitors like enalapril
• Diuretics
• Fluconazole
• Methotrexate
• Over-the-counter supplements or medications

Alternative Medications to Onsior

If Onsior is not suitable for your cat, your veterinarian may suggest other options for managing pain and inflammation.

These alternatives also belong to a group of drugs called NSAIDs, which help reduce swelling, discomfort, and fever.

Each brand contains different active ingredients, so your veterinarian will choose the one that best suits your cat’s needs. Never switch medications without consulting your veterinarian first.

• Metacam (meloxicam)
• Loxicom (meloxicam)
• Rheumocam (meloxicam)
• Inflacam (meloxicam)
• Meloxaid (meloxicam)
• Meloxidyl (meloxicam)
• Rimadyl (carprofen)
• Carprieve (carprofen)
• Canidryl (carprofen)
• Rimifin (carprofen)
• Carprox (carprofen)
• Carprodyl (carprofen)
• Rycarfa (carprofen)
• Trocoxil (mavacoxib)
• Cimalgex (cimicoxib)
• Previcox (firocoxib)
• Firodyl (firocoxib)

Save on Budget-Friendly Onsior from Canada

Onsior is a trusted option for relieving pain and inflammation in cats, especially after surgery. But in the United States, the cost can be high. Pharma Giant offers a simple and affordable way to buy Onsior for cats through licensed Canadian pharmacies.

You get the same high-quality brand at a significantly lower price, delivered directly to your doorstep.

Pharma Giant makes it easy to save money while protecting your cat’s health. We focus on safety, convenience, and customer satisfaction with every order.

• Works only with licensed Canadian pharmacies
• Offers lower prices on Onsior tablets for cats
• Allows bulk ordering with 3-month supply options
• Shows full pricing upfront with no hidden fees
• Ships quickly within 3-5 business days across the U.S.
• Uses temperature-controlled packaging for sensitive medications
• Every order is approved by a US doctor and verified by a Canadian pharmacist

How to Order Onsior Online?

1. Search for Onsior, choose the strength and quantity, then click Buy to add it to your cart.
2. Enter your name, shipping address, and payment information at checkout. Use code PGSAVE10 to get 10% off your first order.
3. Submit your prescription by uploading it during checkout, emailing it to info@pharmagiant.com, or faxing it to 1-888-562-8159

Frequently Asked Questions

Disclaimer

Pharma Giant provides medical information to help you better understand medications and medical conditions.This content is for informational use only and does not replace advice from a licensed medical practitioner. Consult your doctor or pharmacist before starting or changing any medication. All our partners follow strict safety standards set by their country’s health authorities to make sure you receive safe and high-quality medications.