Onsior® Tablets for Dogs

Onsior is a veterinary nonsteroidal anti-inflammatory medicine for dogs. It helps relieve pain and swelling linked to osteoarthritis and soft tissue surgery. This page explains how it works, who it may suit, and how you can arrange access for your pet.

What Onsior Is and How It Works

Border Free Health connects U.S. patients with licensed Canadian partner pharmacies; prescriptions are verified with prescribers before dispensing. Onsior® uses robenacoxib, a COX-2 selective NSAID that targets inflammatory pathways while aiming to spare protective COX-1 activity. We provide US delivery from Canada, including options for those paying without insurance. Onsior for Dogs is intended to reduce pain and inflammation so your companion can move more comfortably. The treatment may be used for short courses after procedures or longer courses for chronic joint discomfort as directed by your veterinarian.

It works by lowering prostaglandins that drive tenderness, swelling, and heat at affected sites. This medicine is part of the coxib class, designed to focus primarily on COX-2 enzymes. Your prescriber will decide whether a short-term or ongoing plan is appropriate based on your dog’s condition and lab history.

Who It’s For

This therapy is for dogs that need relief from postoperative soft tissue pain or signs associated with osteoarthritis. It is not for use in cats from this page’s product. Dogs with current stomach ulcers, significant kidney or liver disease, bleeding disorders, or dehydration may not be good candidates. Puppies below the labeled age or weight range should avoid it unless a veterinarian specifically advises otherwise. Discuss past NSAID reactions, any steroid use, and all other medicines before starting treatment. See our resources on Osteoarthritis and Pain to learn more about related conditions.

Dosage and Usage

Follow your veterinarian’s prescription and the product label exactly. Robenacoxib for Dogs is usually given once daily. For postoperative use, a short course may begin before or just after surgery when advised, then continue for several days as directed. For osteoarthritis, ongoing daily dosing may be prescribed for a defined period with routine monitoring. Give tablets at the same time each day. If stomach upset occurs, your vet may suggest giving with a small meal. Do not change the dose, split tablets, or extend duration without veterinary guidance. Avoid combining with other pain relievers unless your prescriber approves.

If this medicine is part of a broader plan, your clinician may also recommend adjunct measures such as weight control, controlled activity, or physical therapy. For multi-modal support in some dogs, veterinarians may consider adjuvant options discussed in our article on Gabapentin For Dogs. Always defer to your veterinarian’s advice.

Strengths and Forms

Tablets are commonly available in several dog-specific strengths. Onsior 20mg Tablets for Dogs is one of the typical presentations, alongside lower and higher dose options to match your veterinarian’s weight-based plan. Packaging and exact strengths can vary by market and manufacturer supply. Availability may change; your prescription will specify the strength and quantity appropriate for your dog.

Missed Dose and Timing

If you miss a dose, give it when you remember unless it is close to the time for the next scheduled dose. If it is near the next dose, skip the missed dose and continue the regular schedule. Do not double up. Keeping a daily reminder or using a pill organizer can help maintain steady use during the prescribed period. Ask your veterinary team what to do if vomiting, diarrhea, or refusal of the tablet occurs after a scheduled dose.

Storage and Travel Basics

Store tablets in the original blister or container, away from moisture and direct light, and out of reach of children and animals. Keep the package closed until use. Do not store in the bathroom or near sinks. When traveling, carry the labeled prescription container and a copy of your vet’s directions. Pack enough doses for the entire trip plus a small reserve. If your itinerary involves flights, place medicines in your carry-on bag and keep them dry. Our partners use temperature-controlled handling when required to maintain quality in transit.

Benefits

This medicine helps reduce pain and inflammation so dogs can rest, move, and recover more comfortably. It is part of a class designed to focus on inflammatory enzymes associated with discomfort. Onsior pain relief for dogs can support improved mobility and activity levels when paired with vet-guided care. Once-daily dosing may be convenient for many households. Use the lowest effective dose for the period your veterinarian recommends.

Side Effects and Safety

• Digestive upset: vomiting, soft stool, or diarrhea
• Reduced appetite or lethargy
• Increased thirst or changes in urination
• Behavior changes, restlessness, or discomfort

Serious but less common events can include gastrointestinal ulceration or bleeding, kidney or liver issues, and allergic reactions. Stop the medicine and contact your veterinarian if you notice black stool, persistent vomiting, jaundice, severe lethargy, facial swelling, or collapse. Risk may be higher in dogs with dehydration, pre-existing organ disease, or when combined with other NSAIDs or steroids. If your dog is also on insulin or diuretics, ask your clinician about additional monitoring.

Drug Interactions and Cautions

Do not combine with other NSAIDs or corticosteroids unless your veterinarian instructs you to do so. Use caution with anticoagulants, certain blood pressure medicines, diuretics, and other nephrotoxic or hepatotoxic drugs. Tell your prescriber about all supplements and over-the-counter products. Dogs with a history of NSAID intolerance, bleeding disorders, or significant kidney, liver, or gastrointestinal disease require careful consideration. Regular lab checks may be advised for longer courses or higher-risk patients. For broader pet therapy options, see our Pet Medications category.

What to Expect Over Time

Many dogs show signs of improved comfort after the first few doses, though response varies. For postoperative use, your veterinary team will outline the expected course and when to reassess. For osteoarthritis, steady daily use as directed, plus weight management and controlled activity, may help maintain comfort. Keep a log of mobility, appetite, stool quality, and behavior. Share observations with your clinician so they can adjust the plan if needed. Stop and contact your veterinary clinic if concerning side effects emerge at any point.

Compare With Alternatives

Veterinarians may consider several approved NSAID options depending on health history and response. Carprofen is a widely used canine NSAID; see Rimadyl® for a common brand option. Another alternative is deracoxib; learn more at Deramaxx®. Your clinician may also discuss meloxicam suspensions or other classes if NSAIDs are not suitable. Choice depends on prior tolerability, lab results, and your dog’s concurrent therapies.

Pricing and Access

You can review Canadian options with US delivery from Canada and compare your prescription details before checkout. Onsior for Dogs online allows you to request fulfilment from our Canadian partners with transparent information at each step. If you pay cash, you can also explore potential savings with Promotions. Buy Robenacoxib for Dogs if your veterinarian has prescribed it and you prefer a similar class option. For estimates, view the product page and select your strength and quantity. Our checkout shows current pricing and lets you upload your vet prescription securely.

Availability and Substitutions

Supply can vary by strength and package size. If a strength is not available, your prescriber may recommend an equivalent alternative based on your dog’s needs and lab history. Avoid splitting tablets or substituting on your own. The pharmacy will contact your clinician if a change is required and will only dispense with approval.

Patient Suitability and Cost-Saving Tips

Good candidates are dogs needing NSAID therapy with stable kidney and liver values, no active ulcers, and no known hypersensitivity to coxibs. Dogs on steroids, with bleeding issues, or with significant organ disease need individualized consideration. For savings, ask your vet about the lowest effective duration, consider multi-month fills when appropriate, and set refill reminders so you do not run out during a course. Keep your dog at a healthy weight and follow exercise guidance to support joint comfort between doses.

Questions to Ask Your Clinician

• Is an NSAID appropriate for my dog’s diagnosis and history?
• What baseline labs and follow-up checks are recommended?
• How long should my dog stay on this therapy?
• What signs mean I should stop and call the clinic?
• Can I give it with food or other medicines?
• Are there non-drug measures that can help comfort and mobility?

Authoritative Sources

Elanco Onsior (Manufacturer)Health Canada Drug Product DatabaseFDA DailyMed (Labeling Database)

Ready to proceed? Start your order with secure checkout and US delivery from Canada, with prompt, express shipping. Always use as directed by your veterinarian. This information is educational and not a substitute for professional advice.