Free UK Delivery on orders over £49

Zylkene Capules

Item Number: ZYLKENE

Zylkene Capules

Choose Your Options:

Total: £0.00

Choose options to add to basket



Browse other products from the Zylkene product range Browse other products from the Zylkene product range


Zylkène is a novel product, which is proven to help manage stress in dogs and cats.
There are many common causes of stress for dogs and cats, as for their owners! Many animals (especially cats) find change difficult to deal with and Zylkène can help facilitate adaptation to change.

Common causes of stress include:
Moving house
Arrival of a new baby or a new pet
A new cat moving into the outside territory
Sudden noise e.g. fireworks or thunderstorms
Cattery or Kennel stay
Many cats also find living with other cats stressful

Dogs and cats obviously cannot tell us how they are coping, but they can alter their behaviour. There are many different ways pets can show stress including:
Posture changes e.g. crouching, dilated pupils
Changed demeanour
House soiling
Changes use of their environment e.g. changed resting place, reduced exploration or stopped visiting a certain part of the house
Changes in pattern of sleeping
Habits such as excessive licking and grooming
Reduced play
Changed interaction with humans or other pets – can be increased or decreased

Some signs are more easily recognised than other – cats in particular show stress by ‘withdrawal’ behaviours such as hiding more and resting on a higher surface e.g. top of wardrobe rather than a chair.

Some of these behaviours can also have a medical cause so it is very important to see your vet to you discuss if Zylkène is suitable for your pet.

Zylkène comes in capsules which are colour coded for size. It only needs to be given once daily, and is easy to give. Simply open the capsule, and mix the palatable powder with food or a treat. Zylkène has not been associated with any side effects.

Behaviour modification techniques can also help
your pet to deal with stress – ask your vet or
behaviouralist for advice.

What is Zylkene?

Zylkene is a natural product, proven to help manage stress in cats and dogs. Zylkene quickly helps pets to cope with many challenging situations and can facilitate adaption to change.

Zylkene contains the globally patented bioactive decapeptide a-casozepine, derived from milk protein casein.

No side effects have been associated with the use of Zylkene and it can be given with other products.

Zylkene is non-chemically manufactured to human pharmaceutical standards (GMP) and the final product is hypoallergenic, preservative free and lactose free.


Zylkene is palatable and easy to give- open the capsule and mix the water- soluble powder with food or a treat such as cheese or tuna. The capsules can also be given whole.

The average daily intake required is 15mg/kg, given once daily. The pets behaviour should be re-evaluated after a 15-30 day course and the daily intake modfied if necessary.

How do I use Zylkene?

For short term stress, e.g. kennelling, begin Zylkene one day before the anticipated stressful situation and continue for the duration of the stress.

Zylkene can help manage long term stress. The initial period of use should be 1-2 months, and can be repeated as required.

Behaviour modification techniques will also aid the management of stress-related behavioural problems in dogs and cats.

Dosage and Admin:

Up to 5kg (11lb)- give one 75mg capsule daily
5-10kg (11-22lb)- give two 75mg capsules daily
10-20kg (22-44lb)- give one 225mg capsule daily
20-40kg (44-88lb)- give one 450mg capsule daily
Over 40kg (88lb)- give two 450mg capsules daily


Shipping charges mainland UK zone1

ValueWeightDelivery Charge
Over £49.00Any WeightFREE
Under £49.00No weight limit£4.50
Under £49.00Under 250g£2.99

Most orders are despatched the same day and standard delivery is 3 to 5 working days from despatch. FAST Expedited options are available.

NB: Orders placed with faster delivery must be placed before 13:00 to ensure same day dispatch (excluding weekends and bank holidays). Please also check on the product page that the items ordered show 'In Stock' otherwise your order will be delayed until the stock becomes available, which in most cases will only be 24hrs.

Estimated "Usually shipped in" information is shown against most products

Overseas orders

Postage outside of the UK is from £4.50

Prescription Items

Prescription items will be sent on receipt of a valid signed and dated prescription.

Pick up

We offer a pickup service for orders placed over the phone.

Please ring us on 01833 641112 for more information.

Refrigerated Items

Refrigerated items will be sent by carrier or Royal Mail with coolpacks unless you pay for a premium for a refrigerated delivery. We will contact you prior to despatch for your instructions.


We want you to be completely satisfied with any purchase. If not any item* can be returned to us within 14 days of receipt for exchange or refund Please give us a ring for a returns number on 01833 641112 or alternatively email [email protected] to obtain a returns number.

*Due to legal requirements medicines may not be returned except to correct an error in despatch or in response to an "official recall". If an item is believed to be faulty it should be returned for inspection and it may be necessary to forward it to the manufacturers for testing before replacements or refunds can be authorised. This does not infringe legal rights. Please contact our customer services for a "Returns Number" which must appear on the outside of the package or it will not be accepted. We advise customers to use an insured method of shipping and to retain proof of despatch. We may refuse returns on products specially obtained or manufactured to order. Items must be returned unsoiled and unused and sent adequately packed and carriage paid.

Frequently Asked Questions

There have been no questions/answers for this product so far.

Ask Question

Ask a question about Zylkene Capules



Did nothing for our dog..

Reviewed by: Stephen Bannister

Reviewed on: 06 October 2020

Product Variant: ZYLKENE 75MG20


The only thing that disappointed me was although my dog was a lot calmer he did still exhibit signs of stress.

Reviewed by: Shirley Telford

Reviewed on: 10 December 2019

Product Variant: ZYLKENE 75MG20


Can’t get either of my cats to take this no matter how devious I try to be.

Reviewed by: Suzanne Kyriacopoulos

Reviewed on: 21 October 2019

Product Variant: ZYLKENE 75MG20


Great product, I have a very nervous cat and this is great for when I give her a good groom and its great for fireworks.

Reviewed by: Lily Harrison

Reviewed on: 16 October 2019

Product Variant: ZYLKENE 75MG20


Very good , worked for our extremely nervous rescue lab. <br />Much but then prescribed meds. <br />Natural, and works if needed ling term

Reviewed on: 25 April 2019

Product Variant: ZYLKENE 450MG

Show More Reviews (50) Show Fewer Reviews (50)

You Might Also Like

Deosect Spray

A residual insecticide for the control of flies and lice on horses.

Item #: DEOSECT 250ML

From £40.99 inc. VAT

Effipro Spot On Solution for Cats (pack of 4)

Effipro spot on flea treatment for cats pack of 4 is the effective solution against fleas and ticks offered by Virbac. It is a fipronil-based alternative available from your online pharmacy flea department at hyperdrug


From £14.85 inc. VAT

Effipro Spot On Solution for Large Dogs (pack of 4) for dogs 20-40kg

Effipro spot on flea treatment for dogs is a smart fipronil-based alternative flea and tick treatment for medium dogs weighing between 20-40kg Insecticidal efficacy against new infestations with adult fleas persists for up to 8 weeks.


From £22.19 inc. VAT

Henry Wag Pet Cool Mat

The Pet Cool Mat is an innovative gel mat which helps to keep you pet cool by drawing in heat from your pets body.


From £17.69 inc. VAT