Loss of appetite after S-adenosylmethionine Silybin in dogs

The FDA has received 42 reports of loss of appetite in dogs after S-adenosylmethionine Silybin. That is 17% 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
67%Marked serious
12%Recovered
17%Died or euthanised
46 daysTypical onset
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How soon it started

Same day
4 14%
1–2 days
2 7.1%
3–7 days
1 3.6%
1–4 weeks
4 14%
Over a month
17 61%

How the animals did

Recovered
5 12%
Still unwell when reported
18 43%
Died
2 4.8%
Euthanised
5 12%
Not known
12 29%

Problems reported at the same time

20 48%
17 40%
14 33%
Weight loss
9 21%
Loose stool
8 19%
7 17%

Age of the animals

Under 1 year
0
1–3 years
4
4–7 years
10
8–11 years
12
12+ years
16

About this medicine

Type: medicine.

Questions owners ask

Can S-adenosylmethionine Silybin 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 S-adenosylmethionine Silybin in dogs · Medicines most reported with loss of appetite