Piroxicam (brand name: Feldene) is a prescription nonsteroidal anti-inflammatory drug (NSAID) that also has anti‑tumor activity. In dogs, it’s most commonly used for certain cancers—especially bladder/urethral cancer called transitional (urothelial) cell carcinoma—and may also be used for other cancers or inflammation as directed by the veterinarian. It is Rx‑only and typically used off‑label in veterinary medicine.
Key safety notes for reception triage: do not combine with other NSAIDs or steroids unless the veterinarian has specifically directed it. Red flags that need prompt attention include vomiting, diarrhea, black/tarry or bloody stools, not eating, marked lethargy, pale gums, or changes in drinking/urination. If any of these occur, advise the owner to contact the hospital immediately; if there is collapse, repeated vomiting with blood, or trouble breathing, direct them to the nearest emergency clinic now. Your veterinarian can discuss expected benefits, monitoring plans (e.g., periodic blood/urine tests), and how long therapy is intended for this pet.
Front desk script: Piroxicam—also called Feldene—is a prescription NSAID that we often use in dogs for certain cancers, especially bladder cancer, and sometimes for inflammation as directed by the doctor. It’s used only under a veterinarian’s guidance.
If you notice vomiting, black or bloody stools, not eating, or your dog seems very weak, please call us right away. If your dog collapses, has repeated vomiting with blood, or trouble breathing, go to the nearest emergency clinic now. The veterinarian can go over why it was chosen for your dog and what monitoring is planned.
Common owner FAQs (use these short Q&As with clients)
Q: Why was my dog prescribed piroxicam? A: It’s a prescription nonsteroidal anti-inflammatory drug (NSAID). In dogs, it’s often used as part of cancer care (commonly bladder/urinary cancers) and sometimes for inflammation or pain. Your veterinarian can discuss the specific goal for your dog and what improvement to expect.
Q: How should it be given and what if I miss a dose? A: Give exactly as labeled, by mouth, ideally with food to help prevent stomach upset. If a dose is missed, call us for guidance; in general, do not give two doses at once. Do not add other pain medicines on your own—many NSAIDs and steroids cannot be used together.
Q: What side effects should I watch for? A: Call us right away if you see vomiting, diarrhea, not eating, lethargy, pale gums, changes in thirst/urination, stumbling, or limb swelling. Go to a veterinary ER now for vomiting blood, black/tarry stools, collapse, or seizures. Your veterinarian will advise you on next steps and whether to pause the medication.
Q: Can it be used with my dog’s other medicines or supplements? A: Tell us about all medications and supplements. Piroxicam generally should not be combined with other NSAIDs (like carprofen, meloxicam, deracoxib, aspirin, ibuprofen, naproxen) or steroids (like prednisone) unless the veterinarian specifically directs it. Your veterinarian can review safety for your dog’s full medication list.
Q: How soon does it work and will my dog need monitoring? A: For inflammation, onset can be within a couple of hours; for cancer care, benefits are assessed over time. Your veterinarian may recommend baseline and periodic blood/urine tests and recheck visits to monitor kidney and liver health and overall response.
Front desk script: Thanks for calling. Piroxicam is an NSAID we use in dogs—often for cancer care—and it’s best given exactly as labeled, with food. If you notice vomiting, diarrhea, not eating, lethargy, pale gums, black stool, or vomiting blood, please call us immediately; after hours, go to the nearest veterinary ER now. Please don’t add any other anti-inflammatory or steroid medications unless our doctor has said to—many can’t be used together. I can message your veterinarian so they can advise on your dog’s specific plan and any needed monitoring.
Owners most often report stomach upset: vomiting, diarrhea or soft stool, and reduced appetite after starting piroxicam. Some also notice the dog seems tired, wobbly/unsteady, itchy or with a skin rash, drinking or urinating more, or swelling of the legs or belly. These are known side effects with NSAIDs like piroxicam. Your veterinarian can discuss what monitoring is planned and what to expect for your dog.
Mild signs (for example, a single episode of soft stool or brief decrease in appetite in a dog that is otherwise bright) can occur. If vomiting or diarrhea happens more than once, if appetite doesn’t return within 24 hours, or if your dog seems unwell, please contact the clinic the same day so the care team can advise next steps.
Red flags that need immediate care: black, tar-like stool; blood in vomit or stool; vomit that looks like coffee grounds; repeated vomiting or diarrhea; collapse, extreme lethargy, or very pale gums; trouble breathing; yellow gums/eyes; marked changes in drinking/urination (especially not producing urine); or sudden limb/belly swelling. These can be medical emergencies—seek emergency veterinary care now and inform us on the way. Your veterinarian will guide all medication decisions.
Front desk script: Thank you for calling—some dogs can have stomach upset with piroxicam. Are you seeing vomiting, black or tarry stool, or any blood? If there is black stool, blood in vomit or stool, very pale gums, collapse, or your dog isn’t producing urine, this is an emergency—please go to the nearest emergency hospital now and I’ll alert our team. If it’s milder signs like soft stool or decreased appetite, I’ll get a same‑day message to the veterinarian so they can advise you. Please also tell me all other medicines or supplements your dog has received; your veterinarian will confirm what’s safe to use together.
Forms and how to give: Piroxicam for dogs is usually dispensed as an oral capsule. Most dogs do better if it’s given with a small meal or snack to reduce stomach upset. Avoid crushing or opening capsules unless the veterinarian specifically instructs it. Store at room temperature and follow any special directions on the label for compounded products. If a dose is missed, do not double up—call the clinic for individualized guidance. Your veterinarian can advise on the best way to give it for your pet’s situation. [VCA notes giving with food and capsule form; PetMD notes it’s usually best with a meal.]
Troubleshooting “won’t take it”: Try hiding the capsule in a small treat (pill pockets, a meatball, cream cheese/peanut butter), then offer a chaser treat. Give one or two “plain” treats first so your dog is eager, then the treat with the pill, then another plain treat. If pilling is consistently difficult, ask the veterinarian about compounding options such as smaller‑strength capsules, flavored oral liquid suspensions, chewables, or tiny tablets to make administration easier. Compounded medications can improve acceptance but are not FDA‑approved products; your veterinarian will choose a reputable, licensed pharmacy when compounding is appropriate. [Compounding forms example; FDA explains compounded animal drugs are not FDA‑approved.]
Vomiting or concerning signs: Mild stomach upset can occur. If your dog vomits after a dose or “acts sick,” call us for next‑step instructions; do not repeat a dose unless the veterinarian tells you to. Seek urgent veterinary care immediately if you see black, tarry stools; vomit with blood or coffee‑ground material; pale gums; marked lethargy; or collapse—these can be signs of serious gastrointestinal bleeding or other adverse effects. Your veterinarian can discuss whether any dose timing with food should be adjusted to reduce stomach upset. [Red‑flag signs and contact guidance.]
Front desk script: It’s usually given as a capsule by mouth with a small meal to help prevent tummy upset. If your dog won’t take pills, we can ask the doctor about a compounded option like a flavored liquid, chew, tiny tablet, or smaller‑strength capsule. If your dog vomits after a dose, please don’t give an extra dose—call us so the doctor can advise. If you ever see black, tarry stool or blood in vomit, go to emergency care right away and let us know.
Piroxicam is a prescription-only NSAID (oxicam class) used in dogs for inflammation and commonly as part of certain cancer protocols. Because NSAIDs can cause serious adverse effects (GI ulcer/bleeding, kidney or liver problems), a veterinarian must approve every refill. Pets on long‑term piroxicam usually need periodic recheck exams and lab monitoring; the timing is set by the veterinarian.
Standardize the call: collect pet and owner identifiers; medication name, strength, and formulation (tablet/capsule/compounded liquid); current label directions; how many doses remain; preferred pickup or pharmacy; other medications (especially any NSAID or steroid); recent side effects (vomiting, black or bloody stool, not eating, marked lethargy, changes in drinking/urination); and date of the last recheck/labs. Typical turnaround is up to 1–2 business days for in‑house pickup once the doctor reviews; urgent requests can be flagged if doses are nearly out or safety concerns are reported. For online pharmacies, ask the pharmacy to send the request to the clinic; verify pharmacy name/phone/fax or e‑prescribe path, and confirm any compounded strength/flavor with the veterinarian before approving changes in product or formulation. Do not advise on dosing; your veterinarian can discuss monitoring plans, refills, and any product switches.
Escalation: if the caller reports vomiting, diarrhea, black/tarry or bloody stools, not eating, pale gums, severe lethargy, or notable increases in thirst/urination—or if the pet is also receiving another NSAID or a steroid—pause the refill workflow and alert a veterinarian for same‑day guidance. If severe bleeding, collapse, or repeated vomiting is reported, direct the caller to seek emergency veterinary care immediately.
Front desk script: Thanks for calling about a piroxicam refill for [Pet Name]. I’ll confirm the medication name, strength and formulation, how you’re giving it, how many doses are left, other medications, and where you’d like it filled. Because piroxicam is an NSAID that requires veterinary monitoring, our doctor will review the chart and may require current bloodwork or a recheck before approving; refills typically take up to 1–2 business days. If [Pet Name] has vomiting, black or bloody stool, isn’t eating, seems very tired, or is also on another anti‑inflammatory or a steroid, I’ll connect you with a veterinarian right away.
Piroxicam (an NSAID) can cause serious stomach/intestinal bleeding and kidney or liver problems in dogs. Escalate immediately if the dog has vomiting with blood or “coffee‑ground” material, black or bloody stools, fainting/collapse, very pale gums, or nonstop vomiting/diarrhea—these can be life‑threatening emergencies. Also escalate immediately for swelling of the face/muzzle, hives, wheezing, or trouble breathing, which can indicate a severe allergic reaction.
Treat suspected overdoses or medication mix‑ups as emergencies. If an extra dose was given, the dog chewed pills, or piroxicam was combined with another pain reliever (another NSAID such as carprofen, meloxicam, deracoxib, firocoxib, robenacoxib) or a steroid (e.g., prednisone, dexamethasone), get a veterinarian right away. New increases or decreases in drinking/urination, loss of appetite, marked lethargy, or yellowing of eyes/gums need same‑day veterinary assessment. Your veterinarian can discuss what monitoring or tests are needed and advise on next steps.
Front desk script: Because your dog is on piroxicam and you’re seeing these signs, I’m getting a veterinarian on the line right now; this can be an emergency. If we get disconnected, please proceed to the nearest emergency veterinary hospital.
If any extra doses were given or any other pain meds or steroids were used with piroxicam, I’ll alert our medical team immediately. Please keep the medication bottles handy so the veterinarian can review them with you.
Key drug-interaction flags with piroxicam (an NSAID): never combine with another NSAID or a steroid (examples: carprofen, meloxicam, deracoxib; prednisone, dexamethasone). This mix greatly raises the risk of stomach/intestinal ulcers and bleeding. If an owner reports blood in vomit, black/tarry stool, repeated vomiting/diarrhea, collapse, or severe weakness, direct them to emergency care now and alert the veterinarian.
Listen for commonly co‑prescribed meds and flag for veterinarian review the same day: heart/kidney medicines such as ACE inhibitors (enalapril/benazepril) and diuretics (furosemide/"water pill") because NSAIDs can strain kidneys and may affect how these drugs work; immune or allergy medicines like cyclosporine; behavior meds such as fluoxetine (SSRI) or clomipramine/amitriptyline (TCAs), which can raise bleeding risk when combined with NSAIDs; and blood thinners like clopidogrel or warfarin due to increased bleeding risk. Your veterinarian can discuss if monitoring or changes are needed.
Common OTC human products owners may give that require immediate flagging: ibuprofen (Advil/Motrin), naproxen (Aleve), aspirin (including bismuth subsalicylate/Pepto‑Bismol), and acetaminophen (Tylenol). Do not advise any OTC pain meds; route these calls to a veterinarian before the owner gives anything else. Always document all prescriptions, OTCs, and supplements the pet is receiving.
Front desk script: Thanks for letting us know about the other medication. Because your dog is on piroxicam, some meds—like other pain relievers, steroids, heart or diuretic meds, and certain behavior meds—can be risky together. I’m going to alert our veterinarian now to review this before you give any more medications. If you see black or bloody stool, vomiting blood, your dog won’t eat, or they seem very weak, please go to the emergency hospital immediately and call us on the way.
Store piroxicam capsules at room temperature, ideally 68–77°F, with brief exposure up to 86°F acceptable. Keep the container tightly closed, protected from moisture and light, and avoid humid spots like bathrooms. Keep out of reach of children and other pets; secure storage is important, especially in multi‑pet homes. Compounded versions (liquids or special capsules) may have different requirements—follow the compounding pharmacy’s label exactly. Your veterinarian can confirm any special handling if the label is unclear or if the medication was exposed to heat or moisture.
Shelf life: Use piroxicam only until the expiration or “discard after” date on the pharmacy label. Do not use expired medication. Compounded products often have shorter use‑by dates than manufactured capsules—follow the date on the label and ask the prescribing veterinarian if you’re unsure.
Disposal: Encourage owners to use a drug take‑back kiosk or prepaid mail‑back. If that isn’t available and the medicine isn’t on FDA’s Flush List, instruct them to mix it with something unappealing (used coffee grounds/cat litter), seal in a bag, and place in household trash; remove personal info from bottles. Do not flush unless the label or FDA Flush List specifically says to. If a child or another pet may have swallowed any amount, treat it as an emergency and direct the owner to an emergency veterinarian or animal poison control immediately. Your veterinarian can discuss safe storage and disposal options with the owner at pickup.
What to schedule: Before a dog starts piroxicam (or at the prescribing visit), book a baseline exam plus lab work: complete blood count, chemistry panel, and urinalysis. This establishes kidney and liver baselines and screens for risks seen with NSAIDs. Your veterinarian can discuss if any additional tests are needed based on age, other medications, or cancer treatment plans.
Typical follow-up: Arrange the first recheck within the first month after starting piroxicam, with an exam and repeat bloodwork (and urine if requested). After that, plan periodic monitoring. Many dogs on long‑term NSAIDs are rechecked every 3–12 months; higher‑risk patients (senior pets, kidney/liver history, multiple medications) may need checks every 1–2 months—follow the doctor’s direction. If piroxicam is part of an oncology plan, the oncologist may tie lab testing to treatment cycles (for example, labs before chemotherapy visits). The exact interval is set by the veterinarian.
What to tell owners to watch for: Promptly escalate if there are possible NSAID adverse signs. Emergency now if black/tarry stools, vomiting blood or “coffee‑ground” material, repeated vomiting/diarrhea, collapse, severe lethargy, or pale gums. Same‑day call if decreased appetite, mild vomiting/diarrhea, or increased drinking/urination occur. Do not add other NSAIDs or steroids unless the veterinarian has instructed it; the veterinarian will advise on next steps and any schedule changes.
Front desk script: Because piroxicam can affect the stomach, kidneys, and liver, we schedule baseline blood and urine tests before starting, then a recheck with labs about 2–4 weeks after the first dose, as the doctor advises. After that, we’ll book regular checkups every few months or more often if your pet is higher‑risk or on cancer therapy—your veterinarian will set the exact timing. If you see black stools, blood in vomit, repeated vomiting/diarrhea, collapse, or pale gums, please go to the nearest emergency hospital right away and let us know. For decreased appetite or mild GI upset, call us the same day so we can coordinate next steps with the veterinarian.
Piroxicam (brand name Feldene) is a prescription-only NSAID for dogs. In veterinary practice it is often used as part of treatment plans for certain cancers, including a type of bladder cancer. Important side effects to listen for include stomach upset, and urgent red flags include vomiting or diarrhea that persists, blood in vomit, black/tarry or bloody stools, pale gums, marked lethargy, changes in drinking or urination, limb swelling, unsteady walking, coughing or trouble breathing. If any of these are reported, treat it as an emergency and connect the client with a veterinarian or direct them to the nearest emergency hospital immediately. Your veterinarian can explain how and why this medication is being used for a specific pet and what monitoring is needed. [Sources: VCA; Merck Vet Manual; PetMD]
Front-desk guidance: Verify the pet, prescriber, and medication before discussing. Do not give dosing instructions, do not advise starting or stopping, and do not suggest combining with other medicines—especially other NSAIDs or steroids—because interactions and monitoring decisions must come from the veterinarian. If a dose was missed, extra was given, or the pet chewed into the bottle, do not estimate amounts—escalate to a veterinarian or emergency care. Avoid saying “it’s safe to double up,” “you can stop or restart on your own,” “it’s just like human ibuprofen,” or promising outcomes; instead use, “your veterinarian can discuss dosing, safety monitoring, and next steps for your pet.”
Front desk script: Thank you for calling [Hospital Name], this is [Your Name]—how can I help with your dog’s piroxicam today? Piroxicam is a prescription anti‑inflammatory that our veterinarians often use to help manage certain cancers in dogs; your veterinarian can explain how it fits your pet’s plan. If you’re seeing vomiting, diarrhea, black or bloody stool, blood in vomit, very pale gums, collapse, or your dog isn’t urinating, please go to the nearest emergency hospital now—I’ll alert our medical team. For questions about dosing, refills, or side effects, I’ll connect you with the veterinarian or have a nurse review your pet’s chart. I can also schedule a recheck or same‑day call‑back—what works best for you?