Leucocytosis after Ketoconazole in dogs

37 reports to the FDA describe leucocytosis in dogs given Ketoconazole. That is 1.6% of all reports for this medicine, compared with 1.0% across reports for all dog medicines, so it is reported unusually often with this medicine.

37Reports
86%Marked serious
19%Recovered
27%Died or euthanised
15 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
5 18%
1–2 days
0 0.0%
3–7 days
5 18%
1–4 weeks
5 18%
Over a month
13 46%

How the animals did

Recovered
6 16%
Recovered with lasting effects
1 2.7%
Still unwell when reported
11 30%
Died
2 5.4%
Euthanised
8 22%
Not known
9 24%

Problems reported at the same time

Age of the animals

Under 1 year
1
1–3 years
9
4–7 years
13
8–11 years
10
12+ years
4

About this medicine

Type: medicine.

Questions owners ask

Can Ketoconazole cause leucocytosis in dogs?
37 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 15 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).

Leucocytosis with similar medicines

All reported side effects of Ketoconazole in dogs · Medicines most reported with leucocytosis