In the UK, arthritis in dogs is treated mainly with a veterinary NSAID authorised by the Veterinary Medicines Directorate (VMD) — the class that includes carprofen, cimicoxib, enflicoxib, firocoxib, mavacoxib, meloxicam, robenacoxib and tiaprofenic acid. Alongside these sit grapiprant (a prostanoid receptor antagonist), the monthly anti-nerve growth factor injection bedinvetmab, pentosan polysulfate, and non-drug measures such as weight control and hydrotherapy. Every one of these is a POM-V: prescription-only, and legally obtainable only after a vet has clinically assessed your dog.
That last point is the practical reality most owners run into first. You cannot buy arthritis medication for dogs over the counter in Britain, and nothing in this article is a substitute for the consultation that starts the process.
Quick answer
- First line: a VMD-authorised veterinary NSAID, chosen by your vet from a notably wide UK licensed range.
- Alternatives and add-ons: grapiprant, bedinvetmab (monthly injection), pentosan polysulfate, and human-authorised analgesics used off-licence under the prescribing cascade.
- Legal status: all POM-V. A clinical assessment by a vet is required before a prescription can be written.
- Non-drug measures with real evidence: weight optimisation, controlled exercise, physiotherapy and hydrotherapy (which by law need a vet’s referral).
- Never give: ibuprofen, naproxen, aspirin or any human paracetamol tablet from your own cupboard.
Why is arthritis medication for dogs prescription-only in the UK?
Because the Veterinary Medicines Regulations 2013 put these drugs in the POM-V category, and the RCVS Code is explicit that “POM-V medicines must be prescribed by a veterinary surgeon, who must first carry out a clinical assessment of the animal under their care”. A phone call about a limping dog is not enough on its own; the vet needs to have examined your dog and to be able to take responsibility for follow-up.
This exists for a reason. Long-term NSAIDs act on the gut, kidneys and liver, and the dose depends on weight, age, concurrent disease and everything else your dog is taking. Deciding all that from a website would be guesswork.
What POM-V means for you in practice:
- Your dog needs an examination before the first prescription, and periodic re-examination to keep it going.
- Your vet can dispense the medicine directly, or write you a written prescription you can take to a registered online veterinary pharmacy — often noticeably cheaper for long-term medication.
- Practices may charge a fee for that written prescription. The Competition and Markets Authority published the final report of its market investigation into veterinary services for household pets on 24 March 2026; its remedies package — which includes a price-list requirement — is to be introduced through Orders on veterinary businesses and undertakings from the RCVS over an implementation period of up to six months. Check the CMA case page for what is actually in force before assuming any particular charge has changed.
- Repeat supplies are usually authorised for a set period, after which your vet will want a recheck — often with blood tests — before continuing.
One genuinely useful UK-only resource: every authorised veterinary medicine has its Summary of Product Characteristics published free in the VMD Product Information Database. If your vet prescribes something and you want to read the official document rather than a marketing page, that is where to look.
Which arthritis treatments are actually authorised in the UK?
The UK licensed range is wider than in some other countries, which is why advice written for an American audience does not map neatly onto a British consulting room. Authorisations change, so treat the list below as an orientation rather than a register: the definitive answer for any named product is the VMD Product Information Database.
| Treatment category | UK examples | Legal status | Strength of evidence | Typically suits |
|---|---|---|---|---|
| Veterinary NSAIDs | carprofen, cimicoxib, enflicoxib, firocoxib, mavacoxib, meloxicam, robenacoxib, tiaprofenic acid | POM-V | Strongest and longest-established for canine OA pain | Most dogs with confirmed osteoarthritis and acceptable kidney and liver bloods |
| Prostanoid receptor antagonist | grapiprant | POM-V | Authorised on controlled trials; a different side-effect profile from classic NSAIDs | Dogs needing an alternative to an NSAID |
| Anti-NGF monoclonal antibody | bedinvetmab, given monthly by injection | POM-V, administered at the practice | Authorised; UK pharmacovigilance is active and ongoing (see below) | Dogs with moderate to severe signs, or those who cannot take oral medication |
| Pentosan polysulfate | injectable courses | POM-V | Modest; positioned as potentially disease-modifying, evidence remains limited | Often earlier-stage disease, as part of a wider plan |
| Veterinary paracetamol-containing tablets | paracetamol with codeine, authorised for dogs | POM-V | Authorised for acute pain with a short maximum course — not a long-term arthritis licence | Short-term use only, entirely at the vet’s discretion |
| Human-authorised adjuncts | gabapentin, amantadine, pregabalin | POM-V, prescribed off-licence under the cascade | Limited in dogs; used pragmatically when pain has a nerve-sensitisation element | Dogs plateauing on an NSAID alone |
| Weight optimisation | Structured calorie reduction, practice weight clinics | Free advice from most practices | Strong, and consistently underused | Every overweight arthritic dog |
| Physiotherapy and hydrotherapy | Chartered or RAMP-registered practitioners | Requires veterinary referral by law | Moderate; mechanistically well supported | Most dogs, especially post-surgical or muscle-wasted |
| Joint supplements | Glucosamine, chondroitin, green-lipped mussel, omega-3 | Sold freely | Mixed; better for EPA-rich omega-3 than for glucosamine and chondroitin | Background support alongside, never instead of, veterinary care |
| Surgery and specialist referral | Arthrodesis, joint replacement, licensed stem-cell therapy | Referral level | Case-dependent | Severe or unresponsive disease |
The bedinvetmab (Librela) question, as the UK regulator has framed it
British owners hear a lot of noise about this injection, much of it recycled from American reporting. The relevant UK document is the VMD’s in-depth assessment of selected adverse events, published on 16 February 2026.
Its conclusion is that “the overall benefit-risk balance of the product remains positive based on the data available at this time”, and that many dogs improve significantly. The same assessment is candid about what remains unclear. Death following administration was calculated as a rare event (1 to 10 animals per 10,000 estimated animals treated), with the VMD noting a small subset of dogs aged six and over who deteriorated rapidly within 14 days, no consistent pattern of signs, and no clear determination of whether that deterioration is product related. Reports of arthritis appearing to progress faster than expected were very rare (fewer than 1 per 10,000). Overall adverse event reporting frequency was uncommon (1 to 10 per 1,000).
That is a more measured picture than either the marketing or the Facebook groups suggest. It is also a much better basis for a conversation with your vet than a headline.
What will my vet check before prescribing?
Turning up prepared shortens the road to a working plan.
Bring answers to these:
– When is your dog stiffest — first thing, after a lie-down, or after a long walk?
– Which specific things have changed? Stairs, the boot of the car, slippery kitchen floors, the length of walks?
– Gradual over months, or sudden?
– Any previous cruciate injury, dysplasia diagnosis or joint surgery?
– A written list of everything your dog takes, including supplements and anything left over from a previous course.
– Any vomiting, diarrhoea, black stools, appetite change or increased drinking?
What the appointment usually involves:
– Gait assessment and hands-on palpation for joint swelling, crepitus, reduced range of movement and muscle wastage.
– Body condition scoring, which drives the weight plan.
– Radiographs where needed, both to characterise the joints and to rule out other causes of lameness.
– Baseline blood tests — kidney and liver values, sometimes urinalysis — before a long-term NSAID, repeated on a schedule your vet sets.
– A validated owner questionnaire such as the Canine Brief Pain Inventory, so that “is it working?” becomes a measurement rather than a hunch.
The scale of this in Britain is not small. The RVC’s VetCompass study of 455,557 UK dogs under primary veterinary care found osteoarthritis recorded in 2.5% of dogs in a single year — roughly 200,000 affected dogs annually.
Medicine or supplement: what does each actually do?
| POM-V medicine | Joint supplement | |
|---|---|---|
| Regulation | VMD-authorised for a specific claim in dogs | Sold as a feed supplement; no authorisation to treat disease |
| Can it control pain? | Yes, that is the authorised indication | No lawful claim to treat arthritis pain |
| Evidence base | Assessed by the regulator before authorisation | Mixed; stronger for EPA-rich omega-3 than for glucosamine and chondroitin |
| Access | Vet examination, prescription, monitoring | Off the shelf |
| Realistic role | Controls pain now | May support long-term joint comfort alongside veterinary care |
PDSA puts it plainly: joint supplements are not a replacement for medication and do not work for every dog. If you are weighing one up anyway, start with what the research actually shows about glucosamine for dogs, then use our guide to reading a dog joint supplement label so you are comparing like with like. Very large dogs carry the heaviest osteoarthritis burden, and there are specific considerations for joint supplements for large-breed dogs.
Why do physiotherapy and hydrotherapy need a referral?
This surprises a lot of owners. Under the Veterinary Surgery (Exemptions) Order 2015, treating an animal by physiotherapy — which covers manipulative therapies including massage and hydrotherapy — is only lawful where a veterinary surgeon has examined the animal and prescribed that treatment. A hydrotherapy centre asking for a vet referral form is not being awkward; it is complying with the law, and a centre that does not ask should give you pause.
Look for practitioners registered with RAMP or chartered in veterinary physiotherapy, and expect your vet to send clinical notes across.
What should I never give my dog?
Human painkillers. Ibuprofen and naproxen cause gastrointestinal ulceration and kidney injury in dogs at doses that look trivial to a person, and naproxen persists in dogs far longer than in humans. Aspirin irritates the canine gut, affects clotting, and complicates any later switch to a prescription NSAID because of the washout period required.
Paracetamol deserves a specific UK note. There is a VMD-authorised paracetamol-and-codeine tablet for dogs, prescription-only, and its authorised indication is short-course acute pain rather than long-term arthritis management — check the exact wording in the VMD Product Information Database entry for whichever product your vet names. Its existence is not a licence to reach for the packet in your bathroom cabinet: human tablets come in the wrong strengths and combinations, paracetamol is metabolised differently in dogs, and overdose damages the liver and red blood cells.
If your dog has swallowed any human painkiller, ring your vet or an out-of-hours service straight away. Do not wait for symptoms.
When should I call my vet?
Same day, if your dog is on an arthritis medicine and you see:
– Vomiting, particularly repeated, or vomit resembling coffee grounds
– Diarrhoea, or black tarry stools
– Appetite loss lasting more than a day
– A marked change in drinking or urination
– Yellowing of the gums, eyes or skin
– New lethargy, wobbliness or weakness
– Any new joint swelling or increase in joint pain after treatment — the VMD’s assessment specifically asked vets and owners to report events of this kind, because causation has not yet been determined
– Seizures or disorientation
Emergency, go now:
– Suspected ingestion of a human painkiller
– Collapse, or an inability to stand
– Sudden complete non-weight-bearing lameness (an injury pattern, not typical arthritis)
– Seizures
– A distended, painful abdomen
Two standing rules: never combine two NSAIDs, and never switch between them without your vet’s washout instructions. NSAIDs and corticosteroids together are generally contraindicated.
How long before I see a difference?
| Timeframe | What is realistic |
|---|---|
| 3–7 days | Many dogs on an NSAID rise more easily and manage longer walks. |
| 2–4 weeks | The fair assessment point. Book the recheck rather than deciding alone. |
| 4–8 weeks | Weight loss and physiotherapy gains begin to show. Repeat bloods per your vet’s schedule. |
| 8–12 weeks+ | Omega-3 and supplement effects, if any, become assessable. Reassess the whole plan. |
Arthritis is progressive. Success means better function and comfort, not a restored joint.
Home changes compound with medication, and they cost little: non-slip runners on laminate, a ramp instead of a jump into the boot, a supportive bed away from draughts, and short frequent walks rather than one long weekend hike. Our rundown of practical ways to ease dog joint pain at home covers these in detail, and diet is addressed in choosing dog food for joint health.
If cost is the barrier, that is worth saying out loud at the practice. PDSA runs Pet Hospitals and Pet Care schemes for eligible owners on certain benefits, Blue Cross operates animal hospitals and mobile clinics, and many practices offer staged payment or health plans. Untreated arthritis is a welfare problem, not a budget line.
FAQ
What is the best arthritis treatment for dogs in the UK?
There is no single best option. VMD-authorised veterinary NSAIDs have the longest-established evidence for canine osteoarthritis pain, but the right choice depends on your dog’s age, kidney and liver function, other conditions and other medicines. That judgement is what the examination and pre-treatment blood tests are for.
Can I buy arthritis medication for my dog without a vet?
No. Canine arthritis medicines are POM-V in the UK, and the RCVS Code requires a vet to carry out a clinical assessment of an animal under their care before prescribing. You can, however, ask for a written prescription and have it dispensed by a registered online veterinary pharmacy.
Is Librela safe for dogs in the UK?
The VMD’s in-depth assessment published in February 2026 concluded that the overall benefit-risk balance remains positive, while noting that death following administration is rare, faster-than-expected arthritis progression is very rare, and causation in several reported events remains unclear. Discuss your dog’s individual risk factors with your vet.
Can I give my dog paracetamol for arthritis?
Not from your own medicine cabinet. A paracetamol-containing tablet is authorised for dogs in the UK, but it is prescription-only, intended for acute pain over a short course rather than long-term arthritis, and dosed by the prescribing vet. Human tablets are a real poisoning risk.
How much does dog arthritis treatment cost in the UK?
It varies by drug, dog weight and practice, and monthly injections generally cost more than generic oral NSAIDs. Ask for a written estimate covering the medicine plus monitoring blood tests, and ask about a written prescription for long-term medication. Practices are moving towards published price lists under the CMA’s remedies package.
Do I need a vet referral for hydrotherapy?
Yes. Under the Veterinary Surgery (Exemptions) Order 2015, physiotherapy and hydrotherapy for animals may only be carried out where a vet has examined the animal and prescribed that treatment.
References
- Veterinary Medicines Directorate. Results of in-depth assessment of selected adverse events for Librela Solution for Injection for Dogs. Published 16 February 2026. https://www.gov.uk/government/publications/in-depth-assessment-of-selected-adverse-events-for-librela-solution-for-injection-for-dogs/results-of-in-depth-assessment-of-selected-adverse-events-for-librela-solution-for-injection-for-dogs
- Royal College of Veterinary Surgeons. Code of Professional Conduct for Veterinary Surgeons, supporting guidance chapter 4: Veterinary medicines. Updated 28 October 2025. https://www.rcvs.org.uk/setting-standards/advice-and-guidance/code-of-professional-conduct-for-veterinary-surgeons/supporting-guidance/veterinary-medicines/
- Anderson KL, O’Neill DG, Brodbelt DC, Church DB, Meeson RL, Sargan D, Summers JF, Zulch H, Collins LM. Prevalence, duration and risk factors for appendicular osteoarthritis in a UK dog population under primary veterinary care. Sci Rep. 2018;8:5641. doi:10.1038/s41598-018-23940-z. PMID: 29618832. https://www.nature.com/articles/s41598-018-23940-z
- Veterinary Prescriber. Dog arthritis treatment. https://www.veterinaryprescriber.org/free-articles/dog-arthritis-treatment
- PDSA. Arthritis in dogs. Pet Health Hub. https://www.pdsa.org.uk/pet-help-and-advice/pet-health-hub/conditions/arthritis-in-dogs
- The Veterinary Surgery (Exemptions) Order 2015, SI 2015/772. https://www.legislation.gov.uk/uksi/2015/772
- Veterinary Medicines Directorate. Product Information Database. https://www.vmd.defra.gov.uk/productinformationdatabase/
- Competition and Markets Authority. Veterinary services for household pets: market investigation. https://www.gov.uk/cma-cases/veterinary-services-market-for-pets-review
Veterinary disclaimer. This article is educational and is not veterinary advice. It deliberately contains no doses. Arthritis medicines for dogs are POM-V in the United Kingdom: the medicine, dose, monitoring schedule and duration must be decided by a veterinary surgeon who has clinically assessed your dog. Never give a dog a medicine intended for a human or for another animal. If you suspect poisoning or a reaction to a medicine, contact your vet or an out-of-hours emergency service immediately. Suspected adverse reactions to veterinary medicines can be reported to the VMD.
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