Itching after Trilostane (Vetoryl) in dogs

254 reports to the FDA describe itching in dogs given Trilostane. That is 2.1% of all reports for this medicine, compared with 4.3% across reports for all dog medicines, so it is reported less often than average with this medicine.

254Reports
67%Marked serious
16%Recovered
7.1%Died or euthanised
42 daysTypical onset
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How soon it started

Same day
11 5.6%
1–2 days
12 6.1%
3–7 days
19 9.7%
1–4 weeks
44 22%
Over a month
110 56%

How the animals did

Recovered
38 15%
Recovered with lasting effects
2 0.8%
Still unwell when reported
49 19%
Died
5 2.0%
Euthanised
13 5.1%
Not known
147 58%

Problems reported at the same time

Age of the animals

Under 1 year
1
1–3 years
1
4–7 years
34
8–11 years
117
12+ years
95

About this medicine

Trilostane treats Cushing's disease (an overactive adrenal gland).

Products with this ingredient include Vetoryl. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.

Questions owners ask

Can Trilostane cause itching in dogs?
254 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
How soon after a dose was it reported?
In half of the reports with dates, it started within 42 days of the first dose.
What should I do?
Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Itching with similar medicines

All reported side effects of Trilostane in dogs · Medicines most reported with itching