Pain medicine for dogs is not one category with one “best” drug. A dog recovering from surgery, a dog with osteoarthritis, and a dog with nerve-related pain may all be uncomfortable for different reasons. The safest plan starts by identifying the type and severity of pain, then matching treatment to the dog’s age, medical history, other medicines and day-to-day function.
This guide explains the main medication groups veterinarians may use for pain and inflammation, how NSAIDs differ from other analgesics, why human pain relievers can be dangerous, what monitoring is useful, and how owners can judge whether a pain plan is actually improving quality of life.
Pain treatment starts with recognizing pain
Dogs often do not cry or yelp when they hurt. Chronic pain may appear as slower rising, reluctance to jump, shortened walks, difficulty using stairs, changes in sleep, irritability, reduced play, licking a painful joint, or simply “getting old.” Those changes are easy to normalize, especially when they happen gradually.
The AAHA Pain Management Guidelines emphasize repeated pain assessment and owner observations because a dog’s behavior at home can reveal limitations that are not obvious during a short clinic visit. Pain management is therefore a cycle: assess, treat, reassess and adjust.
Acute pain and chronic pain behave differently
Acute pain follows events such as surgery, injury or sudden inflammation. The treatment goal is often to prevent severe pain before it becomes established and to maintain overlapping relief during the early recovery period. Chronic pain, such as osteoarthritis, can involve long-term changes in the nervous system and may need an ongoing plan rather than a short course of one medicine.
AAHA describes multimodal care as a core principle for both acute and chronic pain. That means combining treatments that work in different ways instead of relying on one drug to do everything.
Veterinary NSAIDs: the main anti-inflammatory pain medicines
Nonsteroidal anti-inflammatory drugs, or NSAIDs, reduce pain and inflammation by affecting prostaglandin pathways. In dogs, they are commonly used for osteoarthritis and for pain after surgery. Currently marketed FDA-approved NSAIDs for dogs include carprofen, deracoxib, firocoxib, grapiprant, meloxicam and robenacoxib for limited-duration use. All approved veterinary NSAIDs are prescription medicines.
These medicines can improve mobility and quality of life, but the same pathways that reduce inflammation are also involved in protecting the stomach and supporting kidney blood flow. That is why monitoring and patient selection matter.
Why ibuprofen, naproxen and other human NSAIDs are not substitutes
Dogs are not small humans. Ibuprofen, naproxen and other human NSAIDs may be absorbed, processed and eliminated differently in dogs. FDA specifically warns that human NSAIDs can reach harmful blood levels or last too long in pets, increasing the risk of gastrointestinal ulceration, kidney injury and other serious effects.
Do not give an over-the-counter human pain reliever because the dog is limping and the veterinary clinic is closed. If the dog appears painful, call an emergency clinic or ask what can safely wait until the regular veterinarian reopens.
Carprofen
Carprofen is an FDA-approved NSAID for dogs and is available under multiple brand and generic names. It is used for pain and inflammation associated with osteoarthritis and for postoperative pain. The FDA-approved carprofen labeling identifies it as a prescription NSAID for dogs only.
Carprofen is not appropriate for every dog. A veterinarian considers kidney and liver health, hydration, gastrointestinal history and other medicines before prescribing. Our Carprofen for Dogs guide covers those factors in detail.
Meloxicam
Meloxicam is another veterinary NSAID used in dogs. FDA lists oral and injectable meloxicam products among approved canine NSAIDs. As with other NSAIDs, the dose is determined by a veterinarian and should not be borrowed from another dog or translated from a human prescription.
Owners should pay close attention to concentration when using liquid formulations because millilitres and milligrams are not interchangeable. Our Meloxicam for Dogs guide explains formulation and monitoring considerations.
Gabapentin: not an NSAID
Gabapentin is different. It does not work like carprofen or meloxicam and is not primarily an anti-inflammatory drug. It was developed as an anticonvulsant and is used in veterinary medicine as an adjunct for some chronic or neuropathic pain. The Merck Veterinary Manual describes gabapentin as acting on calcium-channel alpha-2-delta proteins and notes that sedation and fatigue can occur.
This is a good example of why “pain medicine” should not be treated as one interchangeable class. A dog may receive an NSAID, gabapentin, both, or neither depending on the nature of the pain.
Multimodal pain care
A multimodal plan combines treatments that target different parts of the pain pathway. Depending on the patient, that might include an NSAID, another analgesic, physical rehabilitation, weight management, controlled exercise, environmental changes, and treatment of the underlying disease.
AAHA places strong emphasis on multimodal care and regular reassessment. The goal is not to accumulate as many treatments as possible; it is to use the smallest effective combination that improves function while keeping adverse effects manageable.
Weight management can be part of pain treatment
For dogs with osteoarthritis, body condition affects joint load and inflammation. AAHA describes weight optimization as an important non-drug component of chronic pain management and notes evidence linking lean body condition with slower osteoarthritis progression.
That does not mean every painful dog should be put on an aggressive diet. Weight loss should be planned around nutritional needs, muscle preservation, other diseases and the dog’s ability to exercise comfortably.
Why baseline bloodwork may be recommended
Before long-term NSAID treatment, veterinarians may recommend bloodwork and sometimes urine testing. These tests establish a baseline for kidney and liver function and can identify disease that is not yet obvious from outward symptoms.
A normal baseline does not guarantee that side effects cannot occur, but it gives the veterinarian a reference point. Repeat testing may be recommended after treatment begins or periodically during long-term therapy depending on the dog’s age, health and other medicines.
NSAID side effects owners should recognize
Potential NSAID adverse effects can involve the gastrointestinal tract, kidneys and liver. Warning signs can include vomiting, diarrhoea, reduced appetite, black or bloody stool, unusual thirst or urination, jaundice, marked lethargy or behavior changes. FDA notes that NSAIDs as a group may affect the stomach and intestines, kidneys and liver.
If concerning signs develop, contact the prescribing veterinarian promptly. Do not give an additional human pain medicine to “cover” the pain while waiting.
Do not combine NSAIDs casually
Using two NSAIDs together can increase the risk of gastrointestinal and kidney injury without necessarily improving pain control. The same caution applies to switching directly from one NSAID to another without veterinary instructions.
A veterinarian may recommend a washout period when changing drugs. The appropriate interval depends on the medicines, duration of use, patient and reason for the change.
NSAIDs and corticosteroids
Corticosteroids such as prednisone are not simply another painkiller. Combining corticosteroids with NSAIDs can substantially increase gastrointestinal risk. The Merck Veterinary Manual notes that steroid use is contraindicated during concurrent NSAID treatment in dogs with lameness.
If your dog has recently received prednisone, dexamethasone or another steroid, tell the veterinarian before an NSAID is started—even if the steroid came from a different clinic.
What about aspirin?
Aspirin is available without a prescription for people, but that does not make it a routine home treatment for dogs. It can affect platelets and the gastrointestinal tract and can complicate later NSAID use. If aspirin has already been given, tell the veterinarian before another anti-inflammatory is prescribed.
How to tell whether the treatment is working
Pain relief should produce meaningful changes in function. For an arthritic dog, that might mean rising more easily, choosing to join family activities, walking farther without slowing, using stairs with less hesitation, sleeping more comfortably or showing fewer signs of irritability when touched.
Pick two or three behaviors that matter for your dog and track them consistently. A short video of getting up from bed or walking on a familiar surface can be more useful than a vague impression that the dog is “a bit better.”
Pain can return even when inflammation is controlled
Chronic pain is complex. A joint may remain structurally abnormal, nerves may become sensitized, or muscle weakness may continue after inflammation improves. That is one reason a dog may need rehabilitation, strength work or an adjunct medication rather than simply a higher NSAID dose.
Repeated reassessment helps the veterinarian distinguish insufficient pain control from a new disease or adverse drug effect.
Exercise: too much and too little can both be a problem
Complete rest is appropriate after some surgeries or acute injuries, but long-term inactivity can worsen muscle loss and stiffness. For osteoarthritis, controlled regular activity is often more helpful than occasional bursts of strenuous exercise.
A rehabilitation professional can help design an activity plan that matches the dog’s pain level, joint disease and fitness. Slippery floors, high furniture and repeated jumping may need environmental modification.
Senior dogs deserve a full assessment, not automatic medication
Older dogs commonly develop osteoarthritis, but not every mobility problem is arthritis. Neurologic disease, muscle weakness, heart disease, endocrine disorders, nail or paw pain, and other problems can look similar at home.
Before starting long-term pain medicine, a veterinary examination helps identify what is actually limiting mobility. The most useful treatment may involve more than pain relief alone.
What if your dog will not take the medicine?
Do not assume the only solution is forcing the same tablet indefinitely. Ask whether another strength, formulation or medication is suitable. Some drugs come as chewables, liquids or injections; others do not. Administration difficulty is part of the treatment decision because missed doses make it difficult to judge whether a medicine works.
What if a dose is missed?
Do not double the next dose automatically. The safest missed-dose advice depends on the medicine and schedule. Check the label or call the prescribing clinic if you are unsure.
What if an extra dose is given?
With NSAIDs, an accidental extra dose deserves prompt advice. Have the product name, strength, number of tablets or liquid volume, time of exposure and dog’s weight ready. Do not induce vomiting unless a veterinary professional specifically instructs you to do so.
Questions to ask before starting a pain medicine
- What type of pain are we treating?
- Is this medicine intended for short-term or long-term use?
- Does my dog need baseline bloodwork or urine testing?
- Which medicines or supplements should not be combined with it?
- What side effects should make me stop and call?
- How soon should I expect improvement?
- What behaviors should I track at home?
- When is the next reassessment?
DogMedsHub pain medicine guides
Start with Carprofen for Dogs, Meloxicam for Dogs and Gabapentin for Dogs. Additional pages will cover other veterinary NSAIDs, human-drug toxicity and condition-specific pain management as the cluster expands.
Postoperative pain is different from chronic arthritis pain
After surgery, pain is expected to change quickly as tissues heal. A dog that is comfortable on the first evening may be more sore the next morning once hospital medications wear off, while another may improve steadily. The discharge plan may therefore include several medicines with different roles rather than a single long-term drug.
Follow the written discharge instructions closely. If the dog is too sedated to stand, cannot settle despite medication, refuses all food and water, repeatedly vomits, or seems more painful instead of gradually improving, contact the surgical team. Do not add an old NSAID or human pain reliever from home because the dog “still hurts.” The clinic needs to know what was already administered during anesthesia and recovery before another drug is added.
Osteoarthritis treatment should be judged over ordinary days
Chronic arthritis rarely improves in a perfectly straight line. Weather, unusual activity, slippery floors, weight gain and other health problems can change how a dog moves from day to day. The best way to judge a long-term pain plan is to watch patterns over several weeks rather than one good or bad afternoon.
Choose specific activities to track: getting out of bed, climbing three familiar steps, completing a normal walk, standing to eat, jumping into the car, or choosing to play. Score those activities simply—easy, difficult, or unable—and bring the record to rechecks. This gives the veterinarian something more useful than “I think he’s about the same.”
Switching pain medicines should be planned
If one NSAID does not provide enough relief, the next step is not to overlap two NSAIDs. A veterinarian may recommend stopping one medicine, allowing an appropriate washout interval, then starting another. The exact plan depends on the drugs involved, how long the first medicine was used, the dog’s health and whether any adverse effects occurred.
The same caution applies when a corticosteroid has recently been given. Because steroids and NSAIDs can both affect the gastrointestinal tract, switching between them requires veterinary direction. Tell the clinic about injections, tablets or medications from other practices so the timing is accurate.
Quality of life matters more than a perfect gait
The aim of chronic pain treatment is not necessarily to make an older dog move like a puppy. It is to restore comfortable function: sleeping well, getting up without obvious struggle, joining normal family routines, maintaining appetite, toileting comfortably and showing interest in enjoyable activities.
A dog may still have a mild limp and yet have a much better quality of life. Conversely, a dog that walks farther but becomes nauseated, lethargic or withdrawn on a medicine may need a different balance. Effective pain care weighs benefit and burden together.
When to ask about rehabilitation
Medication can reduce pain enough for a dog to move more normally, but lost strength does not return automatically. Rehabilitation may include controlled walking, range-of-motion work, targeted strengthening, underwater treadmill therapy or home-environment changes. AAHA’s pain guidelines emphasize combining pharmacological and nonpharmacological strategies when appropriate.
Ask about rehabilitation when weakness, muscle loss, repeated slipping or poor confidence continues after pain is better controlled. The safest exercise plan depends on the joint, neurologic status, surgery history and current pain level.
Last reviewed: October 2026. Educational information only; pain treatment and prescribing should be individualized by a veterinarian.