Weight loss after Ursodiol in dogs

The FDA has received 69 reports of weight loss in dogs after Ursodiol. That is 9.4% of all reports for this medicine, compared with 1.7% across reports for all dog medicines, so it is reported unusually often with this medicine.

69Reports
72%Marked serious
10%Recovered
23%Died or euthanised
31 daysTypical onset
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How soon it started

Same day
5 9.4%
1–2 days
3 5.7%
3–7 days
7 13%
1–4 weeks
11 21%
Over a month
27 51%

How the animals did

Recovered
4 5.8%
Recovered with lasting effects
3 4.3%
Still unwell when reported
28 41%
Died
5 7.2%
Euthanised
11 16%
Not known
18 26%

Problems reported at the same time

Age of the animals

Under 1 year
0
1–3 years
3
4–7 years
11
8–11 years
34
12+ years
21

About this medicine

Type: medicine.

Questions owners ask

Can Ursodiol cause weight loss in dogs?
69 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 31 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).

Weight loss with similar medicines

All reported side effects of Ursodiol in dogs · Medicines most reported with weight loss