Milk Thistle side effects in dogs

144 reports sent to the FDA between 2011 and 2026 involve Milk Thistle in dogs. The most reported problems were liver problems, lethargy, loss of appetite. 58% were marked serious.

144Reports
58%Marked serious
0.0%Only medicine involved
24%Recovered
17%Died or euthanised
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About this medicine

Type: medicine.

Most reported side effects

44 31%
40 28%
Kidney problems
19 13%
Diarrhea
18 13%
Seizures
17 12%
Tremors
13 9.0%
Blood problems
12 8.3%
Abnormal radiograph finding
12 8.3%
Disorientation
11 7.6%
Weight loss
10 6.9%
Excessive thirst
10 6.9%
Elevated gamma-glutamyl transferase (ggt)
9 6.3%

Share = percentage of this medicine's reports that mention the problem. One report can list several problems.

Reports that it didn't work

Some reports are about the medicine not working (for example a dog still getting fleas or heartworm), not about a side effect.

Didn't work as expected
10 6.9%
Didn't stop fleas
2 1.4%
Didn't stop worms
1 0.7%

How soon problems started

Same day
11 11%
1–2 days
7 7.2%
3–7 days
9 9.3%
1–4 weeks
15 15%
Over a month
55 57%

Time from the first dose to the first sign, where both dates were reported (97 reports).

How the animals did

Recovered
31 22%
Recovered with lasting effects
3 2.1%
Still unwell when reported
48 33%
Died
14 9.7%
Euthanised
11 7.6%
Not known
37 26%

Breeds named most often

Popular breeds appear more often because there are more of them.

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