Vetoquinol Zylkene Calming Capsules, 30 Capsules, for Small Dogs & Cats

These calming capsules for dogs and cats are built around one active ingredient: hydrolyzed bovine milk protein at 75 mg per capsule, providing alpha-casozepine. Vetoquinol packs 30 capsules in the box, and the product is labelled for cats and dogs between 10 and 22 lb. The capsules are lactose-free, so the ingredient list stays to that milk protein at its stated amount.

What the active ingredient is

Each capsule delivers 75 mg of hydrolyzed milk protein from a bovine source, and that protein provides alpha-casozepine according to the manufacturer. This is the only active ingredient the label lists. The capsules contain no lactose.

The product comes as a capsule rather than a chew or a tablet, so the protein is measured by capsule and the pet is not asked to chew anything. Vetoquinol lists the capsules as appropriate for both cats and dogs.

Capsule format, pack of 30, and the 10–22 lb range

• The box holds 30 capsules, which is the full count the manufacturer lists for this pack.
• One capsule carries 75 mg of hydrolyzed milk protein, so the amount given to the pet is the amount in the capsules administered that day.
• The product is labelled for small dogs and cats weighing 10 to 22 lb, and Vetoquinol gives this figure as the size range the capsules are for.
• Because the capsule can be opened, the powder inside can be separated from the shell before it goes onto the pet's food.
• The capsules are lactose-free, which matters for owners who check the lactose content of what their dog or cat eats.

Giving a capsule to a dog or cat

The manufacturer's directions are to pull the capsule apart and sprinkle the contents over the pet's food. The capsules are not meant to be swallowed whole according to these directions.

Timing depends on the reason for giving them. For an expected challenging situation, the label says to start one to two days before. Where a pet needs additional stress support, Vetoquinol advises starting five to seven days ahead.

Which details should I confirm before ordering?

What is the active ingredient and how much is in one capsule?

Each capsule contains 75 mg of hydrolyzed milk protein (bovine), which provides alpha-casozepine.

How many capsules are in the pack?

The pack contains 30 capsules.

Which animals is this product labelled for?

Vetoquinol lists it for cats and dogs weighing 10–22 lb.

How is the capsule given?

The capsule is opened and its contents are sprinkled onto the pet's food.

When should I start giving it before a challenging situation?

The label directions say one to two days before the expected situation, or five to seven days ahead for a pet that needs additional stress support.

Do the capsules contain lactose?

The capsules are lactose-free.