Solensia™ for Cats: Benefits, Side Effects and How It Works

By Dr Duncan Houston

Cats with arthritis rarely make their pain obvious.

Instead of limping dramatically, they may stop jumping onto the bed, hesitate before using stairs, sleep in easier-to-reach places, groom less thoroughly or become irritable when picked up. These changes are often blamed on ageing when the cat is actually adapting their life around chronic pain. (PubMed)

Solensia™ is a once-monthly injection containing frunevetmab, a feline-specific monoclonal antibody that targets nerve growth factor. It is approved for controlling pain associated with osteoarthritis in cats. It can be an extremely useful treatment, particularly for cats that are difficult to medicate orally, but it is not a cure for arthritis and it is not free from potential adverse effects. (DailyMed)

Quick Answer

Solensia™ is a monthly veterinary injection used to control osteoarthritis pain in cats. It works by binding nerve growth factor, which is involved in pain signalling and sensitisation.

Some cats improve after the first injection, while others need two or three monthly treatments before the benefit can be assessed properly. Solensia™ does not repair damaged cartilage or reverse arthritis, so weight management, home modifications, suitable exercise and treatment of other painful conditions remain important. (DailyMed)

Solensia™ at a Glance

Question	Practical answer
Active ingredient	Frunevetmab
What is it?	A felinised monoclonal antibody
What does it treat?	Pain associated with feline osteoarthritis
How is it given?	Subcutaneous injection by a veterinary professional
How often is it given?	Once monthly
What does it target?	Nerve growth factor
Does it cure arthritis?	No. It controls pain
How quickly can it work?	Some cats improve within several weeks, but assessment over two or three injections is often more reliable
Common reported adverse effects	Vomiting, injection-site pain, appetite changes, lethargy and skin reactions
Important interactions	Concurrent NSAID safety has not been established on the current US label
Who should not receive it?	Breeding cats, pregnant or lactating queens and cats with known hypersensitivity to frunevetmab
Is every cat helped?	No. Response varies between individuals

The approved dose, minimum age and minimum body weight vary slightly between regional product labels, so the instructions used by the treating veterinarian should take priority. (DailyMed)

What Is Osteoarthritis in Cats?

Osteoarthritis is a progressive disease affecting the entire joint.

It involves changes within the:

• Articular cartilage

• Bone beneath the cartilage

• Joint capsule

• Synovial lining

• Ligaments

• Muscles supporting the joint

• Peripheral and central pain pathways

The problem is therefore more complex than simply having two bones rubbing together. Chronic inflammation and altered pain processing can make a joint painful even when the visible radiographic changes appear modest. Osteoarthritis may affect the hips, knees, elbows, shoulders, ankles, spine or several areas at the same time. (WSAVA)

What Are the Signs of Arthritis in Cats?

Common changes include:

• Hesitating before jumping

• Jumping onto lower surfaces first

• Pulling up with the front legs rather than jumping smoothly

• Difficulty jumping down

• Reduced use of stairs

• Sleeping in more accessible places

• Playing less

• Moving slowly after rest

• Poor grooming over the back or hindquarters

• Developing mats or a greasy coat

• Difficulty entering a high-sided litter tray

• Urinating or defecating beside the tray

• Irritability when lifted

• Avoiding contact with children or other animals

• Reduced scratching or climbing

• Muscle loss over the hindquarters

A cat does not need to limp to have clinically important arthritis pain. Owner observations of jumping, mobility, grooming and daily activities are often more useful than expecting the cat to demonstrate obvious lameness during a short veterinary consultation. (PubMed)

How Is Feline Osteoarthritis Diagnosed?

There is no single test that proves a cat’s behaviour is caused by osteoarthritis.

Diagnosis usually combines:

• A detailed history

• Videos from home

• Changes in specific daily activities

• Orthopaedic examination

• Neurological examination

• Assessment of muscle loss and mobility

• Radiographs

• Response to appropriate pain treatment

Radiographs may show osteophytes, joint remodelling, sclerosis or narrowing, but the severity of radiographic disease does not always match the severity of pain. Some cats have extensive radiographic changes with subtle signs, while others have substantial mobility impairment despite less dramatic imaging. (PubMed Central (PMC))

What Else Can Look Like Arthritis?

Before attributing reduced mobility to osteoarthritis, veterinarians may need to consider:

Possible condition	Helpful clues
Dental pain	Reduced grooming, appetite changes or irritability
Hyperthyroidism	Weight loss, vocalisation, restlessness or weakness
Chronic kidney disease	Weight loss, dehydration, weakness and increased thirst
Diabetes	Increased thirst, weight loss and plantigrade posture
Neurological disease	Poor coordination, dragging paws or altered reflexes
Spinal disease	Back pain, weakness or difficulty positioning
Muscle injury	Focal pain after activity or trauma
Cancer	Progressive pain, swelling or unexplained weight loss
Vision loss	Hesitation when jumping or navigating unfamiliar areas
Cognitive dysfunction	Disorientation, night-time vocalisation and altered routines
Obesity	Difficulty moving without a clearly painful joint
Systemic illness	Lethargy and reduced activity affecting the whole cat

The mistake I see most often is assuming that any older cat moving slowly has arthritis, or assuming that any cat with radiographic arthritis has no other source of pain.

What Is Solensia™?

Solensia™ contains frunevetmab, a felinised immunoglobulin G monoclonal antibody.

Most of the antibody has been engineered to resemble naturally occurring feline antibodies. It binds specifically to feline nerve growth factor and reduces NGF signalling through the TrkA and p75NTR receptors involved in pain and neurogenic inflammation. (DailyMed)

What Is Nerve Growth Factor?

Nerve growth factor has several normal biological functions, but it also contributes to chronic pain.

Within an osteoarthritic joint, NGF may be released alongside inflammatory mediators. It can:

• Sensitise peripheral nerves

• Increase pain transmission

• Contribute to neurogenic inflammation

• Make the nervous system more responsive to painful stimulation

• Amplify the cat’s perception of joint pain

Frunevetmab binds circulating NGF and reduces its ability to activate these pain pathways. (DailyMed)

Does Solensia™ Repair the Joint?

No.

Solensia™ does not:

• Regrow cartilage

• Reverse bone remodelling

• Remove osteophytes

• Repair torn ligaments

• Restore normal joint anatomy

• Prevent every future progression of arthritis

It controls the pain associated with osteoarthritis. A cat that feels better may move, play and groom more, but the underlying joint disease remains present.

Was Solensia™ Really the First Arthritis Injection for Cats?

Not exactly.

Injectable analgesics and anti-inflammatory medicines were used in cats long before Solensia™. What made Solensia™ novel was that it became the first monoclonal antibody approved for feline osteoarthritis pain and, in the United States, the first monoclonal antibody approved for use in any animal species. (Zoetis News)

It was originally marketed as the first and only feline anti-NGF monoclonal antibody. The word “first” remains historically correct. The word “only” is now market-dependent because Portela, a different feline anti-NGF monoclonal antibody with a longer dosing interval, launched in Canada and the European Union in July 2026 and subsequently received approval in Great Britain. (Zoetis News)

How Effective Is Solensia™?

Solensia™ improved owner-assessed mobility and pain outcomes in controlled clinical studies, but the size of the effect differed between trials.

In one exploratory study, 80% of frunevetmab-treated cats met the owner-defined treatment-success threshold at day 56, compared with 47.1% of control cats.

In the larger field study using the final commercial formulation, 75.1% of Solensia™-treated cats met that threshold at day 56, compared with 64.8% of control cats. The high improvement rate among control cats illustrates the substantial caregiver placebo effect seen in feline chronic-pain trials. The FDA therefore used a weight-of-evidence approach across the available owner and veterinary assessments when approving the treatment. (DailyMed)

What Do Those Results Mean in Practice?

They mean:

• Solensia™ can produce meaningful improvement.

• Not every cat responds.

• Some apparent improvement may reflect normal fluctuation or owner expectation.

• Objective before-and-after observations are important.

• Continuing injections without measurable benefit should be reconsidered.

A treatment should make a useful difference to the individual cat, not merely produce a more optimistic description during the recheck.

How Quickly Does Solensia™ Work?

Some cats show improvement within the first two to four weeks.

In the clinical studies, differences between treated and control groups generally became more meaningful by days 28 to 56. The current US label states that steady-state drug concentrations are achieved after approximately two doses. (DailyMed)

In practice, a reasonable assessment period is often:

• After one injection: look for early improvement and adverse effects.

• After two injections: determine whether specific daily activities are easier.

• After three injections: decide whether there is enough benefit to justify continued treatment.

This is a practical interpretation of the study timing rather than a rigid label requirement. A treatment should be stopped or reconsidered sooner if a significant adverse reaction occurs.

How Is Solensia™ Given?

Solensia™ is administered beneath the skin once a month by a veterinary professional.

The current US label uses a minimum target dose of 1 mg/kg:

Cat’s weight	US labelled volume
2.5 to 7 kg	1 mL, one vial
7.1 to 14 kg	2 mL, two vials

Solensia™ is supplied in single-use vials and contains no preservative. Any unused solution must be discarded after the vial is punctured. Regional dosing instructions may differ, so owners should follow the label applicable in their country. (DailyMed)

The US label states that Solensia™ has not been evaluated in cats younger than seven months or weighing less than 2.5 kg. Some other regional labels apply different minimum-age instructions. (DailyMed)

Which Cats May Benefit From Solensia™?

Solensia™ may be particularly useful for:

• Cats with confirmed or strongly suspected osteoarthritis pain

• Cats that are difficult to medicate orally

• Cats in which monthly clinic dosing is more reliable than daily medication

• Cats with several painful joints

• Cats whose mobility, grooming or litter-tray use is affected

• Cats that have not tolerated another appropriate analgesic

• Cats needing a multimodal chronic-pain plan

A good candidate should still receive a full assessment. Reduced movement in a senior cat may have more than one cause, and Solensia™ should not be used as a diagnostic shortcut.

Which Cats Should Not Receive Solensia™?

According to the current US label, Solensia™ should not be administered to:

• Cats with known hypersensitivity to frunevetmab

• Breeding cats

• Pregnant queens

• Lactating queens

Anti-NGF antibodies have produced reproductive and developmental toxicity in laboratory species, and NGF has important roles in fetal nervous-system development. (DailyMed)

Additional caution or reassessment is appropriate for:

• Cats below the locally approved minimum age or weight

• Cats with a previous severe reaction

• Cats with active severe skin disease

• Cats receiving NSAIDs

• Cats receiving another monoclonal antibody

• Cats with unstable kidney, liver or systemic disease

• Cats whose mobility change has not been diagnosed properly

Is Solensia™ Safe for Cats With Kidney Disease?

Solensia™ may be a valuable option for selected cats with chronic kidney disease, but describing it as automatically “kidney safe” is too broad.

As a monoclonal antibody, frunevetmab is handled differently from small-molecule medications and is broken down through normal protein catabolism rather than depending on the same hepatic metabolism and renal excretion pathways as many traditional drugs. This is an important pharmacological advantage, but it is not a guarantee that every cat with kidney disease can receive it without risk. (Zoetis)

The field studies included many cats with early chronic kidney disease. However, worsening of existing renal insufficiency was reported in 6.6% of Solensia™-treated cats and 4.3% of control cats in the pivotal study. This finding does not prove that Solensia™ caused renal deterioration, but it reinforces the need to assess and monitor the whole cat rather than relying on the drug’s antibody classification alone. (DailyMed)

For a cat with kidney disease, useful considerations include:

• Hydration

• Appetite

• Body weight

• Blood pressure

• Kidney-value trends

• Urine concentration

• Other medication

• Whether the mobility problem is genuinely painful osteoarthritis

What Side Effects Can Solensia™ Cause?

The following events were reported during the pivotal US field study. Some also occurred in control cats, so the table does not prove that every event was caused by frunevetmab.

Reported event	Solensia™	Control
Vomiting	13.2%	10.8%
Injection-site pain	10.9%	14.0%
Diarrhoea	6.6%	5.4%
Abnormal behaviour	6.6%	5.4%
Worsening existing renal insufficiency	6.6%	4.3%
Anorexia	6.6%	4.3%
Lethargy	6.0%	3.2%
Dermatitis	6.0%	1.1%
Alopecia	5.5%	2.2%
Pruritus	3.8%	0%
Head or neck scabbing	3.3%	1.1%

Other reported findings included gingival disorders, bacterial skin infection, external-ear inflammation, dehydration and new or worsening lameness. (DailyMed)

Skin Reactions Deserve Particular Attention

Solensia™ may be associated with:

• Scabs around the head and neck

• Itching

• Dermatitis

• Hair loss

• Self-trauma

• Skin ulceration

• Secondary bacterial infection

The current label notes that mild skin signs observed before approval did not necessarily require stopping treatment. That should not be interpreted as permission to ignore worsening or painful lesions. A cat that is scratching intensely, developing ulcers or losing significant hair needs veterinary reassessment before another injection. (DailyMed)

Can Solensia™ Stop Working?

Yes.

Like all therapeutic proteins, frunevetmab can stimulate anti-drug antibody production. Four of 259 cats assessed during the controlled studies developed antibodies against frunevetmab. One of those cats had undetectable drug concentrations and was classified as a treatment failure, suggesting that antibody formation can occasionally reduce effectiveness. (DailyMed)

Loss of response over time may also result from:

• Progression of joint disease

• A new painful condition

• Neurological disease

• Dental pain

• Cancer

• Muscle loss

• Increased body weight

• Changes in the cat’s environment

• Incorrect original diagnosis

What Do Post-Marketing Safety Reports Show?

The FDA’s adverse-event database contained 7,842 spontaneous reports associated with Solensia™ from January 2022 through June 30, 2026, most involving cats.

This number must be interpreted carefully. The FDA explicitly states that spontaneous reports:

• Do not prove the product caused the event

• May involve underlying disease

• May involve several medications

• May include medication errors or off-label use

• Cannot be used to calculate an incidence rate

• Cannot reliably be used to compare one product with another

The database is an early-warning and signal-detection system, not a controlled clinical trial. (U.S. Food and Drug Administration)

Online reports should therefore be taken seriously enough to investigate, but they should not be treated as proof that every event was caused by Solensia™ or that a specific percentage of treated cats will experience it.

Owners and veterinarians should report suspected adverse events. Reporting helps regulators identify patterns that may not have appeared during preapproval trials. (U.S. Food and Drug Administration)

Can Solensia™ Be Given With Other Medication?

Every medication, supplement and injection should be reviewed before treatment.

The current US label states that:

• Safe concurrent use with NSAIDs has not been established.

• Potential interactions with veterinary vaccines were not evaluated.

• Safe use with other monoclonal antibodies has not been evaluated. (DailyMed)

Human anti-NGF studies identified rapidly progressing osteoarthritis in a small number of people, with greater incidence when anti-NGF antibodies were combined with long-term NSAID treatment. Rapidly progressing osteoarthritis has not been characterised or reported in cats, but this is why owners should not add meloxicam, robenacoxib or another NSAID without direct veterinary instruction. (DailyMed)

NSAIDs remain important and evidence-supported medicines for chronic feline pain. Current feline guidelines discuss their careful long-term use, including in selected cats with stable early kidney disease. That does not establish that combining an NSAID with Solensia™ is safe for every patient. (SAGE Journals)

How Worried Should You Be After an Injection?

Lower Concern

Your cat has:

• Brief injection-site tenderness

• One episode of vomiting

• Mild tiredness for several hours

• Normal appetite

• Normal breathing

• No skin lesions

• Normal walking and awareness

What it may mean: A mild and self-limiting reaction is possible.

What to do: Monitor closely for 24 to 48 hours and contact the clinic if the sign repeats or worsens.

Moderate Concern

Your cat develops:

• Repeated vomiting or diarrhoea

• Reduced appetite

• Lethargy continuing into the next day

• New itching

• Small scabs

• Hair loss

• Injection-site swelling

• New or worsening lameness

• A notable behavioural change

What it may mean: A clinically important adverse reaction or another illness may be present.

What to do: Contact the treating veterinarian promptly and discuss whether examination is needed before the next dose.

High Concern

Your cat develops:

• Complete food refusal

• Significant head or neck dermatitis

• Open skin sores

• Severe self-trauma

• Marked weakness

• New ataxia or inability to jump normally

• Repeated falls

• Persistent vomiting

• Disorientation

• Severe worsening of mobility

What it may mean: A serious adverse event or unrelated medical emergency may be developing.

What to do: Seek same-day veterinary assessment. Do not administer another injection until the cat has been reassessed.

Critical

Your cat develops:

• Open-mouth breathing

• Facial or throat swelling

• Collapse

• Blue, grey or white gums

• Severe weakness

• Repeated seizures

• Inability to stand

• Minimal responsiveness

• Rapidly progressing hypersensitivity signs

What it may mean: Anaphylaxis or another life-threatening emergency may be occurring.

What to do: Attend an emergency veterinary hospital immediately. Monoclonal antibodies can potentially cause immediate or delayed hypersensitivity reactions. (DailyMed)

When Is This an Emergency?

Seek immediate emergency care after treatment if your cat develops:

• Breathing difficulty

• Open-mouth breathing

• Facial swelling

• Collapse

• Pale or blue gums

• Severe weakness

• Seizures

• Inability to stand

• Rapidly deteriorating awareness

• Repeated uncontrollable vomiting

Independent of Solensia™, a cat with sudden non-weight-bearing lameness, paralysis, major trauma or a cold painful limb also requires urgent examination. Those signs are not typical uncomplicated osteoarthritis.

What To Do Before Starting Solensia™

1. Confirm That Osteoarthritis Is the Likely Pain Source

A monthly injection should not replace a proper diagnostic assessment.

The veterinarian should consider:

• Painful joints

• Neurological disease

• Dental pain

• Kidney disease

• Thyroid disease

• Muscle loss

• Cancer

• Previous trauma

• Medication side effects

2. Record a Baseline

Choose three specific activities that are difficult for your cat.

Examples include:

• Jumping onto the sofa

• Jumping down from the bed

• Climbing stairs

• Entering the litter tray

• Grooming the lower back

• Playing with a familiar toy

• Using a scratching post

Record short videos before the first injection. Repeat the same videos under similar conditions after each dose.

3. Review Existing Disease and Medication

Tell your veterinarian about:

• Kidney disease

• Liver disease

• Hypertension

• Hyperthyroidism

• Diabetes

• Skin disease

• Previous allergic reactions

• Vaccinations

• NSAIDs

• Steroids

• Other injections

• Supplements

• Previous monoclonal antibody treatment

4. Agree on a Treatment Trial

Before starting, decide:

• Which activities should improve

• When the response will be reviewed

• What adverse effects require a call

• How many doses will be tried before deciding whether it works

• What will happen if the benefit fades before the next injection

5. Improve the Home Environment

Pain relief works better when the environment stops repeatedly asking the cat to perform uncomfortable movements.

Helpful changes include:

• Low-entry litter trays

• Steps to beds and sofas

• Non-slip runners

• Warm supportive bedding

• Raised food or water bowls when helpful

• Easily accessible scratching surfaces

• Lower climbing routes

• Ramps to favourite windows

• Resources placed on the same floor

What Should You Expect After the First Injection?

During the First 24 to 48 Hours

Monitor:

• Appetite

• Vomiting

• Diarrhoea

• Energy

• Injection-site discomfort

• Breathing

• Skin

• Walking

A brief injection reaction may settle, but persistent or escalating changes deserve veterinary advice.

During the First Month

Watch the specific activities selected before treatment.

The cat may:

• Jump more confidently

• Use stairs more often

• Groom previously neglected areas

• Enter the litter tray more comfortably

• Become more socially engaged

• Play again

• Sleep in previous favourite places

Do not judge response solely by general statements such as “seems younger”. Look for repeatable functional changes.

After Two or Three Injections

Ask:

• Is mobility genuinely better?

• Is the cat more comfortable?

• Are difficult activities improving?

• Has the effect lasted the full month?

• Have adverse effects occurred?

• Is the benefit worth the cost and clinic visits?

A cat showing no meaningful improvement after an appropriate trial should be reassessed rather than receiving injections indefinitely.

What if Solensia™ Does Not Work?

Possible explanations include:

• The pain is not primarily osteoarthritis.

• Several painful conditions are present.

• The cat has advanced muscle loss.

• Neurological disease is limiting mobility.

• The treatment trial has been too short.

• The cat is a non-responder.

• Anti-drug antibodies have reduced effectiveness.

• Arthritis has progressed.

• Environmental barriers continue limiting movement.

• Owner expectations are focused on an activity the cat no longer values.

The next step may involve:

• Repeating the examination

• Reviewing videos

• Additional radiographs

• Neurological assessment

• Dental evaluation

• Blood and urine testing

• Rehabilitation

• Weight management

• A carefully selected alternative analgesic

• Referral for an orthopaedic or pain-management opinion

Solensia™ Compared With NSAIDs

Feature	Solensia™	NSAIDs
Mechanism	Blocks NGF pain signalling	Inhibits prostaglandin production through COX pathways
Administration	Monthly injection	Usually oral
Daily owner dosing	No	Usually yes
Main monitoring concerns	Response, skin, GI signs, hypersensitivity and general health	GI, kidney, liver, hydration and blood-pressure risks
Use in kidney disease	May be suitable for selected cats, but not automatically risk-free	May be suitable in selected stable patients with careful screening and monitoring
Concurrent use together	Safety has not been established on the US Solensia™ label	Same concern applies
Repairs arthritis	No	No
Evidence of benefit	Yes, but response varies	Strong evidence exists for selected feline NSAIDs
Convenience	Monthly clinic visit	Home dosing required

Solensia™ and NSAIDs should not be framed as “safe modern treatment” versus “dangerous old medicine”. They are different tools with different strengths, evidence and uncertainties. The most appropriate option depends on the individual cat. (DailyMed)

Why Solensia™ Should Be Part of a Wider Arthritis Plan

Osteoarthritis management is usually most successful when several approaches are combined.

Maintain a Lean Body Weight

Excess body fat increases mechanical joint load and may contribute to systemic inflammation.

Weight loss should be gradual and based on measured portions. Rapid restriction in an overweight cat can cause hepatic lipidosis.

Maintain Appropriate Movement

Complete inactivity accelerates muscle loss.

Useful activity may include:

• Short play sessions

• Slow wand-toy movement

• Ground-level hunting games

• Food puzzles

• Gentle climbing

• Rehabilitation exercises

• Controlled movement across non-slip surfaces

The aim is regular comfortable movement, not forced exercise.

Improve Accessibility

Provide several easy routes instead of requiring one large jump.

Treat Other Sources of Pain

A cat may simultaneously have:

• Osteoarthritis

• Dental disease

• Constipation

• Skin disease

• Neuropathic pain

• Cancer pain

• Postoperative pain

Treating one source does not make the others disappear.

Current global pain guidance recommends multimodal management incorporating weight optimisation, exercise, rehabilitation, environmental modification and appropriately selected analgesic therapy. (WSAVA)

Common Solensia™ Mistakes

Assuming It Cures Arthritis

Solensia™ controls pain but does not repair the joint.

Calling It Completely Kidney Safe

Its antibody pharmacology is different from that of an NSAID, but cats with kidney disease still require individual assessment and monitoring.

Adding an NSAID Without Veterinary Direction

Concurrent safety has not been established on the current US label.

Expecting Every Cat To Respond After One Injection

Some cats need more time, while others will not respond meaningfully at all.

Continuing Without Measuring Benefit

Each monthly dose should be justified by an observable improvement in comfort or function.

Ignoring Skin Changes

Head and neck scabs, itching, hair loss and dermatitis are recognised concerns.

Blaming Every New Illness on Solensia™

Senior cats commonly develop unrelated diseases. Timing matters, but temporal association alone does not prove causation.

Dismissing Every Reported Reaction as Coincidence

A concerning change deserves examination and, where appropriate, formal adverse-event reporting.

Forgetting the Environment

Pain relief cannot make a high-sided litter tray, slippery floor or impossible jump physically easier.

How Can You Protect an Arthritic Cat’s Mobility Long Term?

• Keep the cat lean.

• Record weight and muscle condition regularly.

• Provide low-entry litter trays.

• Use ramps and intermediate steps.

• Add non-slip flooring.

• Maintain short daily play sessions.

• Keep food, water and beds easily accessible.

• Treat dental and other painful diseases.

• Record mobility videos every few months.

• Reassess treatment when the cat’s normal behaviour changes.

• Do not assume that slowing down is simply old age.

Osteoarthritis cannot always be prevented, but earlier detection and a supportive home can prevent a large amount of avoidable discomfort.

Frequently Asked Questions

How Long Does Solensia™ Take To Work?

Some cats improve within two to four weeks. Because the clinical differences became more apparent over days 28 to 56 and steady-state concentrations occur after approximately two doses, many cats are assessed over the first two or three monthly injections. (DailyMed)

Can a Cat With Kidney Disease Receive Solensia™?

Potentially, yes. Solensia™ may be suitable for selected cats with stable kidney disease, but it is not automatically safe for every renal patient. Hydration, appetite, blood pressure, kidney trends and other medication should be reviewed.

Can Solensia™ Be Given With Meloxicam or Robenacoxib?

The current US label states that safe concurrent use with NSAIDs has not been established. Do not combine them unless the treating veterinarian has weighed the individual risks and benefits. (DailyMed)

What Should I Do if My Cat Develops Scabs or Itching?

Contact your veterinarian before the next injection. Mild skin changes may be manageable, but widespread scabbing, intense itching, open sores, infection or self-trauma requires prompt examination.

Does a Cat Need Solensia™ for Life?

Not automatically. Treatment should continue only while it provides meaningful benefit and the risk remains acceptable. Some cats receive long-term monthly therapy, while others stop because of inadequate response, adverse effects, changing health or a different pain-management plan.

Final Thoughts

Solensia™ has given veterinarians an important new way to manage feline osteoarthritis pain, particularly in cats that cannot be medicated reliably every day.

The most important points are:

1. Solensia™ contains the anti-NGF monoclonal antibody frunevetmab.

2. It controls osteoarthritis pain but does not repair damaged joints.

3. Feline arthritis commonly appears as behavioural change rather than obvious limping.

4. Diagnosis should include history, functional assessment, examination and appropriate imaging.

5. Some cats improve after the first injection, while others require two or three doses for proper assessment.

6. Not every cat responds.

7. Vomiting, appetite changes, lethargy and skin reactions are recognised concerns.

8. Head and neck scabbing, itching, dermatitis and hair loss should not be ignored.

9. Solensia™ is not automatically safe for every cat with kidney or liver disease.

10. Concurrent NSAID safety has not been established on the current US label.

11. Breeding, pregnant and lactating cats should not receive it.

12. Objective before-and-after mobility goals are essential.

13. Treatment should not continue indefinitely without measurable benefit.

14. Weight management, home modifications and appropriate movement remain important.

15. Breathing difficulty, facial swelling, collapse or severe neurological signs require emergency care.

The mistake that causes the greatest trouble is treating Solensia™ as either a miracle injection or a dangerous product that should never be used.

It is neither.

It is a valuable analgesic option with genuine evidence of benefit, known limitations and potential adverse effects. The best results come from selecting the right cat, monitoring response honestly and using the injection as part of a complete pain-management plan.

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ASK A VET™ can help you organise mobility videos, treatment dates, side-effect observations and questions for your cat’s veterinary team. A cat with breathing difficulty, collapse, facial swelling, repeated seizures or profound weakness still requires immediate hands-on emergency veterinary care.