Loss of appetite after Milk Thistle in dogs

The FDA has received 42 reports of loss of appetite in dogs after Milk Thistle. That is 29% of all reports for this medicine, compared with 8.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

42Reports
62%Marked serious
14%Recovered
21%Died or euthanised
46 daysTypical onset
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How soon it started

Same day
2 6.1%
1–2 days
3 9.1%
3–7 days
4 12%
1–4 weeks
4 12%
Over a month
20 61%

How the animals did

Recovered
5 12%
Recovered with lasting effects
1 2.4%
Still unwell when reported
17 40%
Died
5 12%
Euthanised
4 9.5%
Not known
10 24%

Problems reported at the same time

28 67%
21 50%
Kidney problems
12 29%
Diarrhea
10 24%
9 21%
Blood problems
9 21%

Age of the animals

Under 1 year
0
1–3 years
5
4–7 years
9
8–11 years
11
12+ years
17

About this medicine

Type: medicine.

Questions owners ask

Can Milk Thistle cause loss of appetite in dogs?
42 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 46 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).

Loss of appetite with similar medicines

All reported side effects of Milk Thistle in dogs · Medicines most reported with loss of appetite