Zylkene Calming Caps 450mg 20 per pack

£35.85 £1.79 each

Zylkène is a complementary feed for cats and dogs that can help support dogs and cats in situations where behavioural adaptation is required. It contains a natural product, derived from casein, a protein in milk that is well known to promote the relaxation of newborns after breastfeeding. Zylkène has become a familiar product for veterinary surgeons, behaviourists, nurses and pet owners for use in helping pets cope when facing unusual and unpredictable situations or before occasions such as a change in their normal environment. Example situations include kennel and cattery stays, house moves, arrival of a new pet or baby, sudden noises e.g. fireworks, travel, vet or groomer visits and Christmas festivities. 
Zylkène is preservative and lactose free.

Product Information

Launched in April 2008, Zylkène is a product that can help support dogs, cats and horses in situations where they find the need to adapt their behaviour to cope. 

There are many ways our pets can respond to new and unpredictable situations and not all animals respond in the same way. Zylkène is palatable and easy to give; simply mix with food or give as a treat. Give just once a day.

Recommended for

  • Changes in environment
  • Being left alone
  • New person, baby or pet being introduced
  • Travelling
  • Kennel or cattery visits
  • Fireworks
  • Loud noises and thunderstorms
  • Vet visits
  • Celebrations
  • Moving house
  • Lactation
  • Weaning


Powder 76.9%: Casein (Trypsin hydrolysis bovine casein), Maltodextrin, Magnesium stearate,
Capsule 23.1% Bovine Skin gelatine


Crude protein 78%, Crude ash 12%, Moisture 8%, Crude fat 3%, Crude fibre 0%


Zylkène is palatable and easy to give; simply open the capsule and mix the palatable powder with food or a treat. Give just once a day. 

Ideally Zylkène supplementation should be started a few days before required, for example before the fireworks season begins or before a kennel or cattery stay.

For long term scenarios such a new born baby into the family, Zylkène should be given for a minimum of 1-2 months or even longer if necessary.

Please be aware Zylkène is a feeding supplement and not a veterinary medicine. 

Feeding Guide

  • For oral administration.
  • The recommended daily amount should be given in one intake.
  • The capsule can be opened and the powder mixed with food or a treat.

Recommended daily amounts are:

  • Up to 5kg: one 75mg capsule
  • 5kg to 10kg: two 75mg capsules
  • 10kg to 15kg: one 225mg capsule
  • 15kg to 30kg: two 225mg capsules
  • 15kg to 30kg: one 450mg capsule
  • 30kg to 60kg: two 450mg capsules
For animal use only. Keep out of reach of children