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Vetoryl is used for the treatment of Cushing’s disease and syndrome in dogs.







Prescription Type

POM-V (Written prescription required)

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Reference : MED-00045
Delivery Between 2 and 3 days
  • Description
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  • Ingredients
  • Directions
  • Legal notice
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What is Vetoryl and who is it for?


Vetoryl is a hard capsule that is used for the treatment of pituitary-dependent and adrenal-dependent hyperadrenocorticism (Cushing's disease and syndrome) in dogs.


This is a Prescription only medicine (POM-V).

Vetoryl is only available with a prescription from your veterinary surgeon.

To check the most up to date information about this product, please read its Summary of Product Characteristics (SPC). It can be viewed here.

What is the active ingredient in Vetoryl?

Trilostane selectively and reversibly inhibits the enzyme system 3 beta hydroxysteroid isomerase, thus blocking the production of cortisol, corticosterone and aldosterone.

When used to treat hyperadrenocorticism, it reduces the production of glucocorticoid and mineralocorticoid steroids in the adrenal cortex. Circulating concentrations of these steroids are thus reduced. Trilostane also antagonises the activity of exogenous adrenocorticotrophic hormone (ACTH). It has no direct effect on either the central nervous or cardiovascular systems.

30 capsules

What is in Vetoryl?


Hard capsules. Ivory body and black cap with the capsule strength printed on the body of the capsule.


Each tablet contains:

Active substances:

Trilostane 30 mg



Titanium dioxide (E171) 1.19 mg

Yellow iron oxide (E172) 0.045 mg

Black iron oxide (E172) 0.672 mg

How do I use Vetoryl?


Vetoryl is a prescription product and must be used according to the instructions of your veterinary surgeon.

Please read the product leaflet thoroughly before administering to your pet.

Marketing Authorisation Holder

Dechra Limited
Snaygill Industrial Estate
Keighley Road
North Yorkshire
BD23 2RW


Marketing Authorisation Number

Vm 10434/4071