Tremors after Estriol in dogs

The FDA has received 49 reports of tremors in dogs after Estriol. That is 2.4% of all reports for this medicine, compared with 3.4% across reports for all dog medicines.

49Reports
76%Marked serious
24%Recovered
6.1%Died or euthanised
34 daysTypical onset
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How soon it started

Same day
4 14%
1–2 days
2 7.1%
3–7 days
4 14%
1–4 weeks
4 14%
Over a month
14 50%

How the animals did

Recovered
8 16%
Recovered with lasting effects
4 8.2%
Still unwell when reported
23 47%
Euthanised
3 6.1%
Not known
11 22%

Problems reported at the same time

Age of the animals

Under 1 year
0
1–3 years
4
4–7 years
10
8–11 years
10
12+ years
25

About this medicine

Type: medicine.

Questions owners ask

Can Estriol cause tremors in dogs?
49 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 34 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).

Tremors with similar medicines

All reported side effects of Estriol in dogs · Medicines most reported with tremors