Firocoxib for Scorpion: Uses, Dosing & Side Effects

This information is for educational purposes only. Never give your pet any medication without your veterinarian's guidance. Dosing, frequency, and safety depend on your pet's specific health profile.

Firocoxib is a prescription nonsteroidal anti-inflammatory drug, or NSAID. In the United States, it is FDA-approved for dogs under the brand name Previcox and as generic firocoxib chewable tablets. It is designed to reduce pain and inflammation, especially in dogs with osteoarthritis or after certain surgeries.

Firocoxib is considered a COX-2 selective NSAID, which means it targets inflammatory pathways more than some older NSAIDs do. That selectivity can help with comfort and mobility, but it does not make the drug risk-free. Like other NSAIDs, it can still affect the stomach, intestines, kidneys, and liver in some pets.

One important note for this page: firocoxib is not a standard medication for scorpions. If "Scorpion" is your pet's name and your pet is a dog, this information may be relevant. If you are asking about an actual scorpion, you should not use firocoxib unless your vet has given species-specific guidance.

In dogs, firocoxib is most commonly used to manage pain and inflammation from osteoarthritis. Many pet parents notice improved comfort with walking, rising, stairs, or play after their dog starts treatment. Your vet may also prescribe it for short-term pain control after orthopedic or soft tissue surgery.

Some vets may use firocoxib extra-label in situations not listed on the drug label when they believe the benefits outweigh the risks. That decision depends on your pet's age, weight, hydration status, medical history, and any other medications being used.

Firocoxib does not treat the underlying cause of arthritis or injury. Instead, it helps control inflammation and discomfort so your pet can move more comfortably. It is usually one part of a broader plan that may also include weight management, rehabilitation, joint support, activity changes, or other pain-control options.

For dogs, the commonly referenced labeled dose is 5 mg/kg by mouth every 24 hours. Your vet may adjust the plan based on the reason for treatment, your dog's body weight, response, and lab work. Firocoxib is usually given as a chewable tablet, and many dogs take it readily.

This medication should be used at the lowest effective dose for the shortest appropriate duration. For surgery, your vet may have you give it before the procedure and then continue for a short recovery period. For osteoarthritis, some dogs need longer-term treatment with periodic rechecks.

Do not split or estimate doses unless your vet tells you exactly how to do it. VCA notes that the tablets should not be used in dogs under 12.5 lb (5.7 kg) because accurate dosing is difficult. If you miss a dose, contact your vet for guidance. In many cases, they will advise giving it when remembered unless it is close to the next scheduled dose. Do not double up unless your vet specifically instructs you to.

Common side effects with firocoxib and other NSAIDs include vomiting, diarrhea, reduced appetite, and lethargy. Some dogs also develop dark or tarry stool, which can suggest gastrointestinal bleeding. Mild stomach upset may improve when the medication is stopped, but any concerning sign deserves a call to your vet.

More serious reactions can involve the stomach or intestines, kidneys, liver, or nervous system. Warning signs include repeated vomiting, blood in vomit or stool, black stool, increased thirst, changes in urination, yellowing of the gums or skin, weakness, incoordination, seizures, or collapse.

See your vet immediately if your pet seems very weak, stops eating, vomits repeatedly, has bloody stool, or shows changes in drinking or urination. NSAID side effects can become serious quickly, especially in dehydrated pets, seniors, or pets with pre-existing kidney, liver, or gastrointestinal disease.

Firocoxib should not be combined with other NSAIDs or with corticosteroids unless your vet has created a specific transition plan. Combining these drugs can sharply increase the risk of stomach ulcers, bleeding, and other complications. Human pain relievers such as ibuprofen, naproxen, or aspirin can be especially dangerous if added without veterinary guidance.

Your vet should also know if your pet takes medications or supplements that may affect the kidneys, liver, hydration status, or bleeding risk. That can include some diuretics, ACE inhibitors, certain antibiotics, anticoagulants, and over-the-counter supplements or herbal products.

Before starting firocoxib, give your vet a full list of everything your pet receives, including flea and tick products, joint supplements, and any recent medications. If your pet is switching from another NSAID or from a steroid, ask your vet whether a washout period is needed before starting firocoxib.