Vomiting after Vitamin K in dogs

The FDA has received 70 reports of vomiting in dogs after Vitamin K. That is 53% of all reports for this medicine, compared with 28% across reports for all dog medicines, so it is reported unusually often with this medicine.

70Reports
90%Marked serious
14%Recovered
61%Died or euthanised
11 daysTypical onset
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How soon it started

Same day
11 17%
1–2 days
8 13%
3–7 days
9 14%
1–4 weeks
23 36%
Over a month
13 20%

How the animals did

Recovered
10 14%
Still unwell when reported
16 23%
Died
17 24%
Euthanised
26 37%
Not known
1 1.4%

Problems reported at the same time

Age of the animals

Under 1 year
4
1–3 years
16
4–7 years
23
8–11 years
19
12+ years
5

About this medicine

Type: medicine.

Questions owners ask

Can Vitamin K cause vomiting in dogs?
70 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 11 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).

Vomiting with similar medicines

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