Last Updated: 11/08/2026
Cat Dementia Treatment: How to Manage Feline Cognitive Dysfunction
A diagnosis of cat dementia can feel overwhelming - but there is plenty you can do to help. From environmental tweaks to targeted supplements and prescription medication, this guide covers the full range of management options for cats with cognitive dysfunction.
Author: Dr Gillian Hill BVSc (Hons)
Reading Time: 4 minutes - short read
There is no cure for Cognitive Dysfunction Syndrome (CDS), but a combination of the right home environment, enrichment, nutrition, and - in some cases - medication can make a real difference to your cat's quality of life. If you are still working out whether your cat has dementia, start with our guide to cat dementia signs and stages first.
What environmental changes help cats with dementia?
The golden rule with CDS is: support and enrich, don't change. Cats with cognitive dysfunction rely heavily on muscle memory and routine to feel safe, so major environmental changes - rearranging furniture, moving the litter box - can trigger a rapid decline.
What does help:
- Consistent, accessible resources: Keep food and water bowls in the same spots. Extra bowls around the house can help cats who seem to forget where theirs are.
- Extra litter trays: Place several around the house, using trays with a low lip that are easy to step into.
- Daytime activity, calm evenings: : Increase daytime exercise and play, to combat sundowning and night-time restlessness. Keep the evening environment quiet and low-stimulus.
- Comfortable rest areas: Provide padded bedding in quiet spots away from foot traffic. Traction mats around the home help with grip.
- Consistent routine: Keeping mealtimes, play sessions, and general human interaction consistent reduces anxiety significantly.
How does enrichment help cats with dementia?
"Use it or lose it" applies to ageing brains in cats just as much as in people. Mental stimulation has been shown to improve neural plasticity - the brain's ability to adapt and maintain connections - and may help slow cognitive decline.
Short, gentle interactive play sessions during the day make a real difference. Rotating toys keeps things novel and engaging. Food puzzles provide mental stimulation at mealtimes and slow down eating at the same time.
What diet and supplements support brain health in cats?
Along with specifically formulated senior cat food, targeted supplements can help support cognitive function and slow age-related decline. Here are the key ingredients to look for:
- Essential fatty acids (omega-3s) EPA and DHA from fish oil support healthy neuronal membranes and reduce inflammation in the brain. A study in the British Journal of Nutrition found that a combination of fish oil, B vitamins, antioxidants, and arginine significantly improved cognitive function in older cats, and may slow age-related decline.1
- Antioxidants Oxidative damage is one of the key mechanisms driving CDS. Antioxidants like Vitamins E and C help neutralise the free radicals that contribute to neuronal damage over time.
- Medium-chain triglycerides (MCTs) MCTs are metabolised into ketones - an alternative energy source for brain cells that may struggle with glucose uptake as they age. MCTs are increasingly included in veterinary cognitive support formulas.
- B vitamins B vitamins (particularly B6, B9, and B12) are essential for neurological function and support healthy neurotransmitter production.
- SAMe (S-adenosylmethionine) SAMe is a naturally occurring antioxidant sometimes recommended by vets to support brain and liver health in senior cats. It's available as a veterinary supplement.
Many of these nutrients are available through a specifically formulated veterinary cognitive supplement, or a senior cat food with built-in cognitive support ingredients. Ask your vet which approach best suits your individual cat.
What medications are used for cat dementia?
Anti-anxiety products can be very helpful for cats experiencing mild behavioural changes related to CDS. For example, alpha-casozepine, a protein derived from casein in milk, may be useful in alleviating the signs of anxiety that accompany cognitive dysfunction.
For more advanced cases, your vet may discuss prescription medication.
Selegiline (also known as L-deprenyl) may be prescribed by your vet for cognitive dysfunction in cats. It works by inhibiting monoamine oxidase B (MAO-B) - the enzyme that breaks down dopamine in the brain. By slowing this process, selegiline increases dopamine availability, supporting better neurological signalling. It also has antioxidant properties that help reduce the free radical damage driving CDS. This medication is not registered for use in cats (or dogs) in Australia, though it may be prescribed 'off-label' by your vet.
Because of its mild stimulant effect, selegiline is given once daily in the morning to avoid interfering with sleep. The goal is to slow progression and improve quality of life, not reverse the condition. Your vet will monitor your cat's response and adjust the dose if needed. Make sure to tell your vet about any other medications your cat is taking, as selegiline cannot be combined with certain drugs.
Can you prevent dementia in cats?
There is no guaranteed way to prevent CDS, but the habits you build throughout your cat's life can support brain health and may help delay the onset of changes:
- Regular interactive play supports neural plasticity and may slow cognitive decline.
- Physical exercise supports blood flow to the brain.
- Brain-supportive nutrition: Transitioning to a senior cat food formulated with omega-3s, antioxidants, and cognitive support ingredients from around 10 years of age is a sensible step.
- Routine vet checks: Regular senior health checks allow early detection and management of conditions like hypertension and hyperthyroidism, which can accelerate cognitive decline if left untreated.
- Consistent, low-stress environment: Reducing chronic stress may be protective for long-term brain health.
References
Pan, Y., Araujo, J. A., Burrows, J., de Rivera, C., Gore, A., Bhatnagar, S. & Milgram, N. W. (2013). 'Cognitive enhancement in middle-aged and old cats with dietary supplementation with a nutrient blend containing fish oil, B vitamins, antioxidants and arginine.' British Journal of Nutrition, 110, 40-49. https://pubmed.ncbi.nlm.nih.gov/23211671/, accessed 22/3/22.
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History
Our experts continually monitor the health and wellness space and we update our articles when new information becomes available.
Wed 12 Aug 2026
Written by Dr Gillian Hill BVSc (Hons)Dr Gillian Hill BVSc (Hons)
Veterinarian
Dr. Gillian graduated from the University of Sydney in 2005 with a Bachelor of Veterinary Science. She worked in a number of small animal clinics, before joining the Pet Circle Vet team in 2020. Dr. Gillian has special interests in ultrasonography, surgery and behaviour. Her favourite part of being a vet is being an advocate for the animals. She loves helping owners to make the best, evidence-based decisions for their pets, and seeing the beautiful bond that people have with their fur-babies.
