FELIWAY Cystease

FELIWAY Cystease FELIWAY Cystease FELIWAY Cystease
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  • Pot of 30 Capsules £6.99
  • Pot of 300 Capsules £55.99

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Feliway Cystease (previously Cystease S / Cystease Advanced) is a tablet given to cats to help encourage urinary health. As stress is considered the main factor in urinary health, it is recommended to use alongside the Feliway calm-inducing diffusers which are available from VioVet here . Various factors have been recognised as being associated with the urinary problems, such as obesity, dried biscuit diets and stress due to environmental factors (often from other cats).

Feliway Cystease also contains Hyaluronic Acid and L-tryptophan. Hyaluronic Acid provides further help to the lining of the bladder wall, whereas L-tryptophan has a calming and de-stressing effect on cats generally. The results are even better if Cystease is combined with the pheromone calming effect of a Feliway Diffuser which can be bought separately and used at the same time.

Cystease tablets should be given once or twice daily to an average sized cat. Once the problem has been brought successfully under control, it is often possible to reduce to a lower rate. This can be increased again if a stressful period or event is anticipated.

Cats prone to this type of bladder problem do better if they have a higher fluid intake, which helps produce more dilute urine. The problem is very unusual in cats which are not producing concentrated urine. Therefore we would recommend that most of the diet consists of wet, not dry food. Obese cats are more prone to trouble too, so the total amount of food provided should be restricted so as to keep the cat's bodyweight to the ideal level.

Capsule contents

Each Cystease capsule contains:

  • 125mg - N-Acetyl Glucosamine
  • 37.5mg - L-Tryptophan
  • 10mg - Hyaluronic Acid

Feeding guidelines

Capsules may be given whole or broken open and mixed with food.

Initially administer according to the guidelines below for at least 2 weeks:

Cats <3kg - 1 capsule daily
Cats >3kg - 2 capsules daily

For maintenance, administer according to the guidelines below:

Cats <3kg - 1 capsule every other day
Cats >3kg - 1 capsule daily

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Reviews (83)

Summary of Reviews for FELIWAY Cystease

Overall 5
Ease Of Use
Value For Money
Absence Of Side Effects
81 out of 83 (98%) customers would recommend this product.
5 stars (67 reviews)
4 stars (14 reviews)
3 stars (1 reviews)
2 stars (1 reviews)
1 stars (0 reviews)

Only verified purchasers of this product can leave a review.

55 Very good
Verified Purchase

By on 28 April 2021

Good stuff. Works very well. No flare ups since I’ve been using this for an old lady cat that spent many years on the street.

Customer recommends this product

45 Urinary tract issue
Verified Purchase

By on 1 January 2021

Great resolved the issue in a few days

Customer recommends this product

45 Feliway cystease
Verified Purchase

By on 28 November 2020

Originally prescribed by vet but cheaper on line

Customer recommends this product

Verified Purchase

By on 23 November 2020

One of my little girl cats was displaying signs of cystitis for weeks. But I knew she was well from monitoring her. She just had a complusion to keep sitting on the litter boxes. After a week of giving her these tablets, she has halved her attachment to the litter boxes. I'm hoping that is a sign of her anxiety easing. Would recommend in cases where you're certain there isn't a bigger problem that the vet needs to deal with.

Customer recommends this product

55 Feliway Cystease Capsules that work
Verified Purchase

By on 14 November 2020

My cat has had this Supplement for the past four years on a daily basis. It aids any anxiety issues and also assists his Hyperthyroidism illness for which he has prescribed medication. I bought these along with ordering his Medication. A good price too

Customer recommends this product

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Q & A

Below are some recent questions we've received regarding FELIWAY Cystease, including answers from our team.

26 November 2020 at 9:14pm

Is it safe for a cat with kidney disease take these


Hi can cystease be given to a cat with kidney disease? Thank you

  • VioVet Staff

The ingredients within Cystease should be safe to use even if your cat has kidney disease. However I would run this past your vet, any dietary changes should always be checked past your vet to ensure they do not interfere with your treatment plan.

10 October 2020 at 8:55pm

Safe to use with Thyronorm

Jamie Cooper

My cat is on medication for hyperthyroidism, he has Thyronorm is it safe to use with this medication?

  • VioVet Staff

Yes Feliway Cystease and Thyronorm are perfectly safe to use together.

13 August 2020 at 3:10pm



My cats on steroids is this product still safe to use?

  • VioVet Staff

Yes this product is safe to use alongside steroid medication.

29 June 2016 at 7:42pm

Recurring cystitis

Rebecca West

  • VioVet customer since 2016
  • From: Durham, United Kingdom

I have a 6 yr old male neutered domestic cat who since april has been to vets numerous times. Each time bladder is empty and get given metacam. Will these tablets help him at all?

  • VioVet Staff

These tablets are indeed intended for cats exactly like yours. "Idiopathic cystitis" is one of the names used to describe the condition and it certainly seems to help using a product like this. It has to be given for a few weeks before it is fully effective, then has to be given long-term.

My guess is that your cat is predominantly on dried food. It is not always the case, but most cats with this problem are on dried food. If this is the case, you have the option of stopping almost all the dried food and giving wet only (tins, pouches etc). Cats virtually never get this type of cystitis if they are producing dilute urine and many cats on dried food just produce concentrated urine instead of drinking more water. A very moist food will largely eliminate this effect. It also encourages cats to drink if you leave 1 or 2 drinking bowls (glass or ceramic ideally) on windowsills or other places where your cat tends to go (away from the feeding area). This will help and might be enough to stop him from getting the problem again.

1 June 2016 at 1:41pm

Using cystease while on a special diet

Jane Crookes

  • VioVet customer since 2016
  • From: West Midlands, United Kingdom

My cat is currently on a renal diet as she has kidney disease. Is it ok to use this alongside as she has always suffered with bouts of cystitis?

  • VioVet Staff

This product is safe to use in the presence of reduced kidney function. I would say though that it is intended for "Idiopathic cystitis" which is the commonest cause of cystitis in younger cats, but tends not to happen as much in older cats. (Cats with reduced kidney function tend to produce larger volumes of dilute urine and this seems to protect against the usual type of idiopathic cystitis.) If cystitis does occur in a cat such as yours now, it is more likely to be a bacterial cystitis which Cystease is not intended for.

You can certainly use Cystease but if you see the symptoms of cystitis, it would certainly be worth having your vet check her over.

16 May 2016 at 10:45am

Product Availability + Expiration Date ?

Khalid Al Thani

  • VioVet customer since 2011
  • From: Al Rayyan, Qatar

Hi VioVet ...
Please is it possible to know when (Flyway Cystease 300 Capsules ) will be available and when will be the expired date ?... Thanks and I hope I hear from you soon .
Best Regards
Khalid Al Thani

  • VioVet Staff

These should be available in the next 2-3 weeks, and the expiry date should be close to 2 years.

12 August 2015 at 9:12pm


VioVet Visitor

Hi my cat is a ragdoll vet just diagnosed with asthma anyone else have this problem and if so any recommendations ?
Thanks in advance.

  • VioVet Staff

Feline asthma is diagnosed sometimes. It varies enormously in how badly it affects any particular individual, from a mild, intermittent cough to serious and sudden difficulty breathing. Treatments are similar in many ways to those given to people with asthma and often involve steroids. On occasions antibiotics are given too if it is felt that secondary infection of the airways is involved, though this is not usual. Your vet is the best person to advise you what to do.

14 February 2015 at 11:56pm

Drinking more


Do the tablets cause thirst as my 17 yr old since taking them seems to be thirstier and a bit off her normal food?

  • VioVet Staff

Increased thirst is not normally noticed with this product, but this is a symptom which should be checked by your vet. The condition of idiopathic cystitis which Cystease is normally used for, is not common in 17 year old cats (they more commonly get septic cystitis which might need antibiotics). I would suggest that you see your vet.

27 October 2014 at 10:54am

Combining products good or bad?


HI there,
My cat has recurrent urinary tract problems, which I believe is a combination of stress and her urine being too alkaline. She is a very jumpy cat and recently a dog has been introduced, which I think she has found stressful also. I know her ph is very alkaline as I have combur9 test strips which show very green - which indicates her urine ph is 8 or 9.

I have bought these cytease tablets, as well as the M&C urinary tract care paste - and I wanted to check they're suitable to combine. I was planning to give her the paste in the morning and the tablets in the evening - as I understand the paste will help lower her urine ph and the tablets will help calm her, and restore her bladder lining.... I'd be really grateful if you can you advise if that's correct and that combing the two would be safe please?

Also - I am slightly confused as to why her ph is so alkaline - she eats very high quality, high meat (min 40%) content wet food twice a day, as well as grain-free, high protein biscuits.... my understanding is that it's biscuit only diets, or diets with too many carbs (grains) that tend to cause high alkalinity.... she drinks water from my water filter - could this be causing alkalinity? Or are some cats just prone to over-alkaline urine....?

Thanks so much! :-)

  • VioVet Staff

The pH of urine can change significantly after it has been collected, especially if it goes into a litter tray. Some test strips are not very accurate on feline urine too I suspect. Therefore firstly I am unsure if your cat is genuinely producing such alkaline urine. If this is a genuine result and the diet is as you say, then I would suspect a urinary infection or metabolic disturbance. Ideally these things should be investigated before starting treatment.

The treatments you have mentioned would be safe to use as you intend and can be helpful for idiopathic, aseptic cystitis. They might not be effective depending partly on the nature of any underlying problem. If your vete is sure this is idiopathic cystitis then the products should be OK to use together. Otherwise, you should try to get a good diagnosis and understanding of what is going on in your cat. It might be time to see the vet! I hope your cat gets better soon, cystitis can be quite distressing for cats.

23 September 2014 at 12:21pm

Safe for pregnant cats?

VioVet Visitor

Can Feliway Cystease be given to a pregnant cat?

  • VioVet Staff

Yes this is a food supplement and should be safe. (There is always a potential risk/benefit assessment to be made with giving any type of medication at any time. You are quite right that this is even more important in a pregnant animal. However Cystease is very unlikely to be able to cause any trouble. If there is a good reason to give this to your cat, such as cystitis, then it is sensible and justified to do so.)

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