Kidney problems after Vitamin K in dogs

The FDA has received 37 reports of kidney problems in dogs after Vitamin K. That is 28% of all reports for this medicine, compared with 2.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

37Reports
92%Marked serious
5.4%Recovered
76%Died or euthanised
9 daysTypical onset
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How soon it started

Same day
4 13%
1–2 days
7 22%
3–7 days
4 13%
1–4 weeks
11 34%
Over a month
6 19%

How the animals did

Recovered
2 5.4%
Still unwell when reported
7 19%
Died
9 24%
Euthanised
19 51%

Problems reported at the same time

28 76%
27 73%
25 68%
Dehydration
12 32%

Age of the animals

Under 1 year
2
1–3 years
5
4–7 years
13
8–11 years
14
12+ years
3

About this medicine

Type: medicine.

Questions owners ask

Can Vitamin K cause kidney problems 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 9 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).

Kidney problems with similar medicines

All reported side effects of Vitamin K in dogs · Medicines most reported with kidney problems