Vomiting after Thyroxine in dogs

70 reports to the FDA describe vomiting in dogs given Thyroxine. That is 23% of all reports for this medicine, compared with 28% across reports for all dog medicines.

70Reports
57%Marked serious
40%Recovered
19%Died or euthanised
24 daysTypical onset
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How soon it started

Same day
7 16%
1–2 days
5 11%
3–7 days
4 9.1%
1–4 weeks
9 20%
Over a month
19 43%

How the animals did

Recovered
28 40%
Still unwell when reported
16 23%
Died
5 7.1%
Euthanised
8 11%
Not known
13 19%

Problems reported at the same time

28 40%
24 34%
13 19%
Abnormal ultrasound finding
10 14%
Tremors
7 10%

Age of the animals

Under 1 year
0
1–3 years
3
4–7 years
8
8–11 years
30
12+ years
29

About this medicine

Type: medicine.

Questions owners ask

Can Thyroxine cause vomiting in dogs?
70 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 24 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).

Vomiting with similar medicines

All reported side effects of Thyroxine in dogs · Medicines most reported with vomiting