Why Cats Need Pain Relief
Pain affects quality of life, immune function, and recovery speed. A cat in unmanaged pain heals more slowly, eats less, and becomes more withdrawn. Adequate pain relief for cats is not optional; it is a core part of good veterinary care.
Signs of pain in cats include hiding, reduced grooming, hunched posture, reluctance to jump, and changes in temperament. Cats rarely vocalise pain the way dogs do.
Common Conditions in Cats That Require Painkillers
Cats may need pain medication for:
- Post-operative recovery (neutering/spaying, orthopaedic surgery, dental extractions)
- Dental disease and oral pain
- Trauma and injuries
- Degenerative joint disease (arthritis)
- Cancer-related pain
- Urinary obstructions and bladder inflammation
- Inflammatory skin and ear conditions
Types of Painkillers for Cats
Vets use several classes of painkillers for cats, depending on the type of pain and the cat’s health. The main categories are NSAIDs, opioids, and neuropathic pain medications.
NSAIDs (non-steroidal anti-inflammatory drugs) such as meloxicam are licensed for short-term use in cats. An anti-inflammatory for cats must always be prescribed by a vet, even licensed NSAIDs need careful dosing and monitoring. Robenacoxib is another licensed feline NSAID used in some countries.
Opioids such as buprenorphine are effective and well-tolerated in cats. They are used for moderate-to-severe acute pain, particularly after surgery.
Neuropathic Pain Medications for Cats
Gabapentin is widely used in cats for chronic and neuropathic pain. It calms overactive pain signals in the nervous system. It also has a mild calming effect, which helps cats that are stressed by their condition.
Amantadine is sometimes added as an adjunct. It acts as an NMDA receptor antagonist and helps with central sensitisation, in which the nervous system becomes hypersensitive to pain.
Other Prescription Feline Pain Relievers
Tramadol is occasionally used, though its efficacy in cats is debated due to differences in how they metabolise it. Butorphanol is an opioid used for mild to moderate pain and sedation. Corticosteroids such as prednisolone address inflammatory pain in specific conditions but are not general analgesics.
How Vets Choose Pain Medication for Cats
Do not use OTC painkillers for cats. Do not try to dose your cat with painkillers without speaking with your vet.
A vet considers the type of pain (acute or chronic, nociceptive or neuropathic), the underlying condition, and the cat’s kidney and liver function, before recommending a suitable painkiller.
Cats with kidney disease (CKD or AKI) cannot safely take NSAIDs. Older cats may need dose adjustments.
Pain Relief After Surgery for Cats
Feline pain relief after surgery typically uses a multimodal approach: a pre-operative opioid to reduce anaesthetic requirements, a post-operative NSAID for inflammation, and sometimes gabapentin for ongoing comfort.
Immediate pain relief for cats after surgery begins before they wake up, not after. This pre-emptive approach significantly reduces the amount of pain medication needed during recovery.
Pain Management for Arthritis and Chronic Conditions
Pain management in cats with arthritis is long-term and usually combines several approaches:
- Low-dose NSAIDs with regular blood work to monitor kidney and liver function
- Gabapentin for the neuropathic component of chronic pain
- Joint supplements (omega-3 fatty acids, glucosamine)
- Environmental modifications (ramps, low-sided litter trays, warm resting spots)
- Weight management to reduce joint load
Your expert feline vet will design a plan that keeps your cat comfortable while minimising long-term drug exposure.
Combining Pain Medications and Supportive Care
Using drugs with different mechanisms together, a practice called multimodal analgesia, allows lower doses of each medication. This reduces the risk of side effects from any single drug.
Supportive care plays a role, too. Warmth, gentle handling, quiet rest spaces, and reduced environmental stress all contribute to pain management alongside medication.
Side Effects of Painkillers in Cats
All pain medications carry some risk. Common side effects include:
- NSAIDs: GI upset, reduced appetite, nausea; kidney and liver effects with long-term use
- Opioids: sedation, reduced appetite, occasional behavioural changes
- Gabapentin: sedation, unsteady gait at higher doses
Side effects are more likely in cats that are dehydrated or have pre-existing kidney or liver disease. Report any changes to your vet promptly.
Painkillers Toxic to Cats
Several common medications are dangerous or fatal to cats:
- Paracetamol (acetaminophen): Even a single standard tablet of Paracetamol or Crocin can kill a cat. Cats cannot metabolise it. It causes methaemoglobinaemia (a condition that prevents blood from carrying oxygen) and acute liver failure. This is a veterinary emergency.
- Ibuprofen and naproxen: Both cause severe GI ulceration and acute kidney failure in cats. There is no safe home dose.
- Aspirin: Cats are highly sensitive to aspirin. It is never a safe home remedy and should only be used under direct veterinary instruction at very specific doses.
“It’s just a small amount” is not a safe assumption when it comes to cats. If your cat has ingested any human painkiller, go to the nearest cat hospital immediately.
Monitoring Cats on Pain Medication
Any cat on ongoing pain medication needs regular monitoring. This typically includes:
- Blood tests (kidney and liver function) at intervals set by the vet
- Weight checks
- Watching for changes in appetite, thirst, urination, and behaviour
Your vet will set the monitoring schedule based on the medication and the duration of treatment.
When to Contact a Veterinarian
Contact a vet promptly if your cat:
- Shows signs of pain: hiding, hunched posture, reduced grooming, or reluctance to move
- Is on pain medication and develops vomiting, diarrhoea, or stops eating
- Has accidentally swallowed any human painkiller
- Seems more sedated or unsteady than usual
Accidental ingestion of paracetamol or ibuprofen is a life-threatening emergency.
Final Thoughts: About Painkillers for Cats
Painkillers for cats must always be prescribed, dosed, and monitored by a vet.
With the right prescription and monitoring, most cats in pain can be kept comfortable. A vet will accurately assess your cat’s pain, choose the safest, most effective option, and review the plan regularly.
FAQs: About Painkillers for Cats
What painkillers are safe for cats?
Only vet-prescribed medications are safe. These include licensed NSAIDs, opioids, and gabapentin.
Can I give my cat human pain medication?
No. Paracetamol, ibuprofen, crocin, and aspirin are all toxic to cats.
What painkillers do vets prescribe for cats?
Vets commonly prescribe meloxicam for short-term inflammation, buprenorphine for acute pain, and gabapentin for chronic or neuropathic pain. Tramadol and amantadine are sometimes used as adjuncts.
How long can cats stay on pain medication?
This depends on the medication and the condition. Opioids are typically short-term. NSAIDs may be used for weeks or months with blood monitoring. Gabapentin can be continued long-term for chronic conditions.
What side effects should I watch for?
Watch for reduced appetite, vomiting, diarrhoea, increased thirst or urination, sedation, and unsteady walking.
References
MSD Veterinary Manual. (2024). Selected Analgesics for Use in Cats. https://www.msdvetmanual.com/multimedia/table/selected-analgesics-for-use-in-cats
Purina. (2023). What Can I Give My Cat for Pain? https://www.purina.com/articles/cat/health/symptoms/what-can-i-give-my-cat-for-pain
Rehagen, T. (2025). Safe Pain Medications for Cats. WebMD. https://www.webmd.com/diet/health-benefits-red-grapes?fbclid=IwY2xjawH903xleHRuA2FlbQIxMAABHWiOx9FOJa8Nh_q2ndXnzgCy3KqI7aIvj9MU5PfHR1vjGlx1xBEpC-3eeQ_aem_PtYjCFjs0ac2S7DyRDbEDg
