Meloxicam Dosage: Vet Dosing Guide

By Dr. Zubair Khalid, DVM, MS, PhD · 2026-09-20

Meloxicam is a prescription nonsteroidal anti-inflammatory drug (NSAID) used in dogs, cats, and some exotic species to control pain, inflammation, and fever. It is one of the most widely prescribed veterinary analgesics in the United States, and it is also one of the easiest to get wrong. The dose that is safe for a dog can be dangerous for a cat, and the dose that is safe for a cat can be ineffective or toxic in a rabbit or a bat. This guide explains how meloxicam dosing works by species, why the safety margin is narrow, what to monitor at home, and when a missed dose or an overdose becomes an emergency.

This article is educational and is not a substitute for veterinary diagnosis or treatment.

At a Glance

What Meloxicam Is and What It Treats

Meloxicam belongs to the oxicam class of NSAIDs. It works by inhibiting cyclooxygenase enzymes, which are the enzymes that produce prostaglandins. Prostaglandins drive pain, swelling, and fever, but they also protect the stomach lining and help maintain blood flow to the kidneys. That dual role is the reason meloxicam relieves pain effectively while also carrying real risk of gastrointestinal and kidney injury.

Meloxicam is used for two broad categories of pain in veterinary medicine. The first is acute perioperative pain, meaning pain around the time of surgery. Studies in dogs and cats have used meloxicam before or after procedures such as ovariohysterectomy, ovariectomy, onychectomy, and orthopedic surgery [2][3][4][5][6]. The second is chronic pain, most often osteoarthritis. A prospective study of 40 cats with osteoarthritis found that oral meloxicam at 0.01 to 0.03 mg/kg once daily was safe and palatable over a mean treatment duration of 5.8 months, with owners rating efficacy as good or excellent in 85 percent of cases [7].

Meloxicam is also used in some cancer pain and metronomic protocols in dogs and cats. One feline study combined low-dose meloxicam with toceranib phosphate in cancer-bearing cats and found that 0.02 mg/kg every 24 hours was safe and well tolerated when combined with that drug [8]. This does not mean meloxicam treats cancer. It means it can be part of a comfort-focused plan in selected patients.

Meloxicam does not treat infection, it does not replace antibiotics, and it does not reverse structural joint disease. It reduces pain and inflammation so that a patient can move, eat, and recover more comfortably.

How Meloxicam Works

Meloxicam preferentially inhibits cyclooxygenase-2 (COX-2), the isoform largely responsible for pain and inflammation, while sparing more of cyclooxygenase-1 (COX-1), which supports gastric mucosal protection and renal blood flow. That selectivity is relative, not absolute. At higher doses or with repeated dosing, the COX-1 sparing effect narrows, and gastrointestinal and renal side effects become more likely.

A rabbit study measured the effect of a single oral 1 mg/kg dose of meloxicam on COX products in plasma. Both thromboxane B2 (a COX-1 marker) and prostaglandin E2 (a COX-2 marker) fell significantly below baseline, with maximal mean reductions to 80 percent and 60 percent of baseline at 8 hours, respectively [9]. In plain terms, even a single dose of meloxicam in a rabbit suppressed both COX pathways, which is why species-specific dosing and monitoring matter.

The pharmacokinetics of meloxicam vary widely between species. A study of Malayan flying foxes given a single oral 0.2 mg/kg dose found a terminal half-life of only 1.1 hours, indicating rapid metabolism in that species [10]. Cats, by contrast, metabolize meloxicam slowly, which is why feline doses are much lower and often less frequent than canine doses. This is the single most important concept in this article: meloxicam doses are not interchangeable between species.

Species-Specific Meloxicam Dosing

The table below summarizes doses that appear in labeled veterinary products or in peer-reviewed veterinary studies. Doses are stated exactly as the cited work reports them. Your veterinarian may adjust the dose, frequency, or duration based on your pet's weight, kidney and liver function, other medications, and the reason for treatment.

Meloxicam Dosing by Species

Why the Doses Are Not Interchangeable

A 0.2 mg/kg dose is a standard canine perioperative dose. The same 0.2 mg/kg dose in a cat is used only as a single Day 1 injection, followed by a much lower 0.05 mg/kg oral dose [2]. Giving a cat the canine maintenance dose repeatedly can cause serious harm. Cats have limited capacity to metabolize meloxicam, so the drug stays in the body longer, and repeated dosing at canine levels can lead to gastrointestinal ulceration and kidney injury.

Exotic species are even less predictable. The flying fox study explicitly noted that significant species differences exist in meloxicam metabolism and that dose extrapolation from domestic animals may not be appropriate for exotic species [10]. If you have a rabbit, guinea pig, bird, reptile, or other exotic pet, do not assume that a dog or cat dose applies.

Labeled Uses and What Meloxicam Does Not Cover

In the United States, meloxicam is the only NSAID labeled for use in cats [1]. It is labeled for dogs as well, and it is commonly used extra-label in exotic species under veterinary direction. Labeled uses center on pain and inflammation associated with surgery, musculoskeletal conditions, and degenerative joint disease.

Meloxicam does not cover:

• Infection. It has no antimicrobial activity.
• Neuropathic pain. A case report of suspected sciatic neuritis in a dog after total hip arthroplasty described pain that was refractory to meloxicam and other standard analgesics, and required a perineural injection of methylprednisolone and bupivacaine [11]. Some pain types need different drugs.
• Cancer itself. Meloxicam may be part of a comfort protocol, but it does not shrink tumors.
• Anxiety or sedation. Meloxicam is not a sedative.

If your pet's pain is not improving on meloxicam, that is information your veterinarian needs. It may mean the dose is too low, the diagnosis is different, or a multimodal plan is required.

How to Give Meloxicam

Meloxicam comes as an oral suspension, oral tablets, and an injectable solution. The injectable form is given by a veterinarian, usually in the clinic. The oral forms are given at home.

Practical rules for giving meloxicam at home:

1. Give it with food. The long-term feline osteoarthritis study administered meloxicam with food and reported good palatability [7].
2. Use the dosing syringe or measuring device that comes with the product. Kitchen spoons are not accurate.
3. Do not split tablets unless your veterinarian tells you to. Uneven splitting changes the dose.
4. Do not give a second dose to make up for a missed one unless your veterinarian approves it.
5. Keep the bottle closed and stored as directed. Shake liquid suspensions before measuring.
6. Never give meloxicam that was prescribed for a different pet, even if the species is the same.

If your pet vomits shortly after a dose, do not automatically redose. Call your veterinarian and describe what happened.

Side Effects and What to Do About Them

The most common meloxicam side effects are gastrointestinal. In the long-term feline osteoarthritis study, gastrointestinal upset occurred in 2 of 46 cats (4 percent), and no deleterious effect on renal function was detected over the study period [7]. In a separate 6-month study of cats with stable chronic kidney disease, 4 cats had meloxicam discontinued because of potential adverse effects that were mainly gastrointestinal [12].

Serious side effects include:

• Gastric or intestinal ulceration, which can cause vomiting, appetite loss, abdominal pain, or black tarry stool (melena).
• Kidney injury, which may show up as increased thirst, increased urination, decreased appetite, lethargy, or changes in bloodwork such as rising creatinine or symmetric dimethylarginine (SDMA).
• Liver enzyme elevation, which is usually detected on bloodwork rather than seen at home.

A gastroscopic study in dogs evaluated 10 days of oral meloxicam, tramadol, or both, and found no significant difference in gastric injury between the treatment groups and the control group over that short period [13]. This is reassuring for short courses in healthy dogs, but it does not remove the risk for longer courses, higher doses, or patients with existing kidney or gastrointestinal disease.

If you see vomiting that does not stop, black or bloody stool, a swollen or painful abdomen, collapse, or a sudden drop in appetite or water intake, stop the medication and contact a veterinarian immediately.

Who Should Not Receive Meloxicam

Meloxicam is not appropriate for every patient. Your veterinarian will typically avoid it or use it only with extreme caution in animals with:

• Existing kidney disease, especially if not stable and monitored.
• Existing liver disease.
• A history of gastrointestinal ulceration or bleeding.
• Dehydration, shock, or low blood pressure.
• Bleeding disorders or low platelet counts.
• Known hypersensitivity to meloxicam or other NSAIDs.
• Pregnancy or breeding plans. A case report in a dog given a single 0.2 mg/kg subcutaneous dose of meloxicam during the periovulatory phase documented a temporary drop in progesterone, from 5.97 ng/mL to 2.77 ng/mL, before it rose again to 13.98 ng/mL [14]. The dog conceived and delivered a normal-sized litter, but the observation supports caution around NSAID use in breeding animals.

Age and weight matter too. Very young animals and very small patients need careful dosing because small measurement errors become large relative errors. Follow the label and your veterinarian's instructions exactly.

Drug Interactions: The NSAID and Steroid Rule

The most important interaction rule for meloxicam is simple. Do not combine it with another NSAID, and do not combine it with a corticosteroid unless a veterinarian has specifically designed and is monitoring that plan.

Concurrent NSAID use multiplies the risk of gastrointestinal ulceration and kidney injury. This includes prescription NSAIDs such as carprofen, robenacoxib, deracoxib, firocoxib, and grapiprant, and it includes over-the-counter human NSAIDs such as ibuprofen, naproxen, and aspirin. Never give your pet a human pain reliever alongside meloxicam.

Corticosteroids such as prednisone, prednisolone, dexamethasone, and methylprednisolone carry the same warning. A case report describing treatment of sciatic neuritis in a dog used a single perineural injection of methylprednisolone alongside bupivacaine in a patient whose prior analgesia had included meloxicam [11]. That was a controlled, veterinarian-administered procedure. It is not a model for at-home combination therapy.

Other interactions to discuss with your veterinarian:

• Diuretics and ACE inhibitors, which can affect kidney blood flow.
• Aminoglycoside antibiotics, which can be hard on the kidneys.
• Anticoagulants, which increase bleeding risk.
• Other pain medications such as gabapentin, tramadol, or amantadine. These are often used together with meloxicam in multimodal plans, and a 10-day canine study of oral meloxicam plus tramadol found no deleterious effects on general health status [13]. Combination plans still require veterinary oversight.

Always tell your veterinarian every drug, supplement, and topical product your pet receives. That includes flea and tick products, joint supplements, and herbal preparations.

Monitoring: Bloodwork and At-Home Checks

Baseline bloodwork before starting meloxicam is standard practice. A typical panel includes a complete blood count, serum chemistry with creatinine and liver enzymes, and often a urinalysis. In cats, symmetric dimethylarginine (SDMA) is increasingly used because it can detect kidney changes earlier than creatinine alone.

The 6-month feline CKD study measured blood pressure, blood urea nitrogen, creatinine, SDMA, glomerular filtration rate (GFR), urinalysis, urine protein-to-creatinine ratio (UPC), and several urinary biomarkers in cats receiving 0.02 mg/kg/day meloxicam versus placebo. No statistical difference was found in systolic blood pressure, BUN, creatinine, SDMA, GFR, or most urinary markers. Mean UPC was higher in the meloxicam group (0.33) than the placebo group (0.1) at 6 months [12]. That finding is a reminder that monitoring should include urine protein assessment, not just blood values.

At home, watch for these warning signs:

• Vomiting, especially repeated vomiting or vomiting blood.
• Black, tarry, or bloody stool.
• Loss of appetite or refusal of favorite foods.
• Increased thirst or urination.
• Lethargy or weakness.
• Yellowing of the gums, skin, or eyes.
• Swelling or fluid accumulation.
• Behavior changes such as hiding, pacing, or irritability.

Recheck timing depends on the patient. Short perioperative courses may need no follow-up bloodwork beyond the surgical recheck. Long-term osteoarthritis or kidney patients typically need rechecks every few months, and your veterinarian may adjust the interval based on findings.

Overdose and Toxicity Thresholds

Meloxicam has a narrow safety margin. Accidental overdose is a genuine emergency, and the outcome depends on how much was given, how the drug was administered, and how quickly treatment starts.

A published case report describes a 6-month-old female Bulldog that received an accidental 1 mg/kg intravenous dose of meloxicam after a routine laparoscopic ovariectomy. That is five times the standard 0.2 mg/kg canine dose. The dog was treated with supportive medical therapy and therapeutic plasma exchange over 210 minutes, achieving 1.2 plasma volume exchanges. Plasma meloxicam concentration dropped by 82 percent during the procedure, with a 47 percent sustained reduction 24 hours later after redistribution between body compartments. The dog remained asymptomatic, was discharged 48 hours after the overdose, and had unremarkable rechecks at 1 and 6 weeks [15].

That case shows that aggressive veterinary care can manage a serious overdose. It does not mean a 1 mg/kg dose is safe to give at home. If you suspect an overdose, call your veterinarian or a pet poison control service immediately. Do not wait for symptoms. Do not induce vomiting unless a veterinarian tells you to.

Signs of meloxicam toxicity can include severe vomiting, bloody or black stool, abdominal pain, lethargy, collapse, decreased urine output, and seizures. These can appear within hours or over several days, depending on the dose and the species.

How Meloxicam Compares With Other Pain Medications

Meloxicam is one of several NSAIDs used in veterinary medicine. Robenacoxib is another COX-2 selective NSAID, and it has been compared directly with meloxicam in cats. In a randomized trial of 147 cats undergoing orthopedic surgery, a single preoperative robenacoxib injection was statistically non-inferior to meloxicam for efficacy during the 3 to 22 hour postoperative window [3]. In a separate randomized trial of cats undergoing ovariohysterectomy, both meloxicam (0.2 mg/kg) and robenacoxib (2 mg/kg) controlled postoperative pain, and owner-assigned pain scores were significantly higher in the robenacoxib group than in the meloxicam group [4]. The authors noted that meloxicam may have improved efficacy in certain patient populations.

Carprofen and paracetamol have also been compared with meloxicam in dogs. In a study of 30 bitches undergoing ovariohysterectomy, all three treatments produced gradual pain reduction over the postoperative period, and no significant difference was detected between groups on the pain scales used [5].

Meloxicam is not the only option, and it is not always the best option. The choice depends on the species, the type of pain, kidney and liver status, other medications, and whether the patient can take oral medication. Opioids, gabapentinoids, local anesthetics, and other classes are often combined with NSAIDs in multimodal analgesia.

Questions to Ask Your Veterinarian

Before your pet starts meloxicam, ask:

1. What is the exact dose in milligrams, and how many milliliters or tablets is that?
2. How long should my pet take it?
3. Does my pet need bloodwork before starting, and when should we recheck?
4. Is my pet taking any other medication that could interact with meloxicam?
5. What side effects should I watch for at home?
6. What should I do if I miss a dose or give too much?
7. Is there a safer alternative for my pet's specific condition?
8. When should I expect to see improvement, and what if I do not?

Write the answers down. Dosing errors often happen when owners rely on memory.

Limitations and When to Contact a Veterinarian

This article summarizes published veterinary dosing and safety information, but it cannot account for your individual pet's weight, kidney function, liver function, other medications, or diagnosis. Every meloxicam prescription needs a veterinarian who has examined the patient and reviewed the bloodwork.

Contact a veterinarian promptly if your pet:

• Vomits more than once, vomits blood, or has black or bloody stool.
• Refuses food for more than 24 hours.
• Becomes lethargic, weak, or collapses.
• Drinks or urinates much more than usual.
• Shows yellow gums, skin, or eyes.
• Has swelling in the abdomen or limbs.
• Receives an accidental extra dose or a dose meant for another pet.
• Has pain that is not improving or is getting worse.

If you suspect an overdose, call your veterinarian or a pet poison control hotline right away. Bring the meloxicam bottle with you so the veterinary team knows the concentration and the amount remaining.

Frequently Asked Questions

What is the standard meloxicam dosage for dogs?

The commonly used perioperative canine dose is 0.2 mg/kg given intravenously or subcutaneously, followed by a lower once-daily maintenance dose as directed by the veterinarian [5][6]. Oral maintenance dosing for chronic pain is typically lower than the initial injectable dose.

What is the meloxicam dosage for cats?

A common labeled feline protocol is 0.2 mg/kg subcutaneously on Day 1, then 0.05 mg/kg orally once daily for up to 3 to 5 days [2]. For long-term osteoarthritis management, published doses range from 0.01 to 0.03 mg/kg once daily with food [7]. Cats need lower and often less frequent dosing than dogs.

Can I give my dog the same meloxicam dose as my cat?

No. Meloxicam doses are species-specific and are not interchangeable. Cats metabolize meloxicam slowly, and giving a cat a canine maintenance dose repeatedly can cause serious gastrointestinal and kidney injury.

How long does meloxicam take to work?

Analgesic effects are typically seen within hours of the first dose. In the feline onychectomy study, cats that received meloxicam preoperatively had better gait and lameness scores than those that received it postoperatively, supporting the principle of preemptive analgesia [2].

Can meloxicam be given with tramadol?

Yes, in many cases. A 10-day canine study of oral meloxicam plus tramadol found no deleterious effects on general health status compared with either drug alone or placebo [13]. Combination therapy should still be directed by a veterinarian.

Can meloxicam be given with prednisone or other steroids?

Generally no. Combining meloxicam with corticosteroids increases the risk of gastrointestinal ulceration and kidney injury. Only a veterinarian should design and monitor a plan that includes both drug classes.

What are the signs of meloxicam overdose in dogs?

Signs include severe vomiting, black or bloody stool, abdominal pain, lethargy, collapse, and decreased urine output. A published case of a 1 mg/kg intravenous overdose in a dog was treated successfully with supportive care and therapeutic plasma exchange [15]. Call a veterinarian immediately if an overdose is suspected.

Is meloxicam safe for rabbits and other exotic pets?

Not automatically. Species differences in meloxicam metabolism are significant, and dose extrapolation from dogs and cats may not be appropriate for exotic species [10]. A single 1 mg/kg oral dose has been studied in rabbits for COX inhibition [9], but dosing intervals and long-term safety are not established for every exotic species. Exotic pet dosing should always come from a veterinarian experienced with that species.

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Sources

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2. Efficacy and safety of 3 versus 5 days of meloxicam as an analgesic for feline onychectomy and sterilization.
3. Robenacoxib versus meloxicam for the control of peri-operative pain and inflammation associated with orthopaedic surgery in cats: a randomised clinical trial.
4. Robenacoxib versus meloxicam following ovariohysterectomy in cats: A randomised, prospective clinical trial involving owner-based assessment of pain.
5. Clinical evaluation of postoperative analgesia, cardiorespiratory parameters and changes in liver and renal function tests of paracetamol compared to meloxicam and carprofen in dogs undergoing ovariohysterectomy.
6. Comparative study between lateral versus latero-ventral quadratus lumborum block for perioperative analgesia in canine laparoscopic ovariectomy.
7. Long-term safety, efficacy and palatability of oral meloxicam at 0.01-0.03 mg/kg for treatment of osteoarthritic pain in cats.
8. Low dose meloxicam is safe and tolerable when combined with toceranib phosphate in cancer-bearing cats.
9. Measurement of Cyclooxygenase Products in Plasma as Markers for Inhibition of Cyclooxygenase Isoforms by Oral Meloxicam in New Zealand White Rabbits (Oryctolagus cuniculus ).
10. PHARMACOKINETICS OF MELOXICAM FOLLOWING A SINGLE ORAL DOSE IN MALAYAN FLYING FOXES ( PTEROPUS VAMPYRUS).
11. Successful treatment of suspected sciatic neuritis following canine total hip arthroplasty.
12. Effects of low-dose meloxicam in cats with chronic kidney disease.
13. Gastroscopic Study of Meloxicam, Tramadol, and Their Combined Administration on the Development of Gastric Injuries in Dogs.
14. Influence of a Single Dose of Meloxicam Administrated during Canine Estrus on Progesterone Concentration and Fertility-A Clinical Case Study.
15. Treatment of meloxicam overdose in a dog via therapeutic plasma exchange.