Celecoxib for Macaws: 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.

Celecoxib is a prescription nonsteroidal anti-inflammatory drug (NSAID). It works by reducing inflammation and pain through cyclooxygenase inhibition, with relatively greater COX-2 selectivity than many older NSAIDs. In birds, including macaws, it is used off label, which means it is not specifically FDA-approved for macaws but may still be prescribed by your vet when the expected benefits fit your bird's case.

In avian medicine, celecoxib is most often discussed for painful inflammatory conditions and in some cases as part of a broader plan for avian bornavirus-associated disease or proventricular dilatation disease (PDD). Because macaws can vary widely in size, hydration status, liver function, kidney function, and appetite, the same drug can behave differently from one bird to another.

That is why celecoxib should never be started from a home medicine cabinet. Your vet may choose it over another NSAID in some situations, but the decision depends on your macaw's diagnosis, body weight, current medications, and how easy it is to medicate safely.

Your vet may prescribe celecoxib for a macaw when the goal is to reduce pain, swelling, or inflammation. Examples can include arthritis, chronic orthopedic discomfort, soft tissue inflammation, or pain associated with some long-term inflammatory conditions.

In avian references, celecoxib is also listed for osteoarthritis in birds, and it has been used by avian veterinarians in some birds with PDD or avian bornavirus-related gastrointestinal or neurologic disease as part of a larger treatment plan. This does not mean it is a cure. Instead, it may be one option to help manage inflammation and improve comfort in selected cases.

Celecoxib is usually only one piece of care. Your vet may pair it with weight monitoring, hydration support, diet changes, assisted feeding, husbandry adjustments, or other medications depending on whether the main problem is pain, mobility, gut function, or a more complex inflammatory disease.

Celecoxib dosing in birds is species- and case-dependent. Published avian references list oral dosing ranges around 10-30 mg/kg by mouth every 12-24 hours for birds, while psittacine references commonly cite 10 mg/kg by mouth every 24 hours and some clinicians report 20 mg/kg once daily in direct oral dosing for certain psittacine cases. Because these ranges come from different avian uses and species, your vet will choose the dose that best matches your macaw's diagnosis and response.

For macaws, accurate dosing matters. A small measuring error can become significant, especially if a capsule is opened or a compounded liquid is used. Your vet may prescribe a compounded oral suspension or another formulation that allows safer, more precise dosing for a bird. Give the medication exactly as labeled, and do not change the dose, frequency, or duration on your own.

If your macaw spits out medication, refuses medicated food, vomits, or seems more weak after a dose, let your vet know before giving more. Ask whether the drug should be given directly by mouth, hidden in a small amount of approved food, or followed with a treat. If you miss a dose, contact your vet or pharmacist for instructions rather than doubling the next dose.

Like other NSAIDs, celecoxib can cause digestive, kidney, or liver-related adverse effects. In birds, pet parents may notice reduced appetite, lethargy, changes in droppings, vomiting or regurgitation, weakness, or worsening dehydration. Dark, tarry, or bloody droppings can raise concern for gastrointestinal irritation or bleeding and should be treated as urgent.

Some side effects are subtle at first. A macaw may perch lower than usual, sleep more, lose interest in food, or show less normal vocalizing and activity. Because birds often hide illness, even mild changes deserve attention when a new NSAID has been started.

Contact your vet promptly if you see appetite loss, diarrhea, black droppings, vomiting, marked sleepiness, increased thirst, or any sudden decline. See your vet immediately for collapse, severe weakness, trouble breathing, active bleeding, or signs of severe pain. Your vet may recommend stopping the medication, checking bloodwork, adjusting the dose, or switching to another option.

The most important interaction concern is combining celecoxib with another NSAID or with a steroid medication. This can sharply increase the risk of stomach or intestinal injury, bleeding, and kidney problems. Examples include aspirin, meloxicam, carprofen, ibuprofen, prednisone, dexamethasone, and similar drugs.

Celecoxib should also be used cautiously in birds that are dehydrated, have known kidney or liver disease, are not eating well, or are taking other medications that may stress the kidneys or digestive tract. Supplements and over-the-counter products matter too. Even if something seems harmless, your vet needs the full list.

Before starting celecoxib, tell your vet about every medication, supplement, and recent treatment your macaw has received. That includes pain relievers, anti-inflammatory drugs, antifungals, antibiotics, compounded medications, and anything mixed into food or water. If another veterinarian has prescribed something recently, share that too so your care team can avoid unsafe overlap.