Kidney problems after Thyroxine in dogs

29 reports to the FDA describe kidney problems in dogs given Thyroxine. That is 9.5% of all reports for this medicine, compared with 2.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

29Reports
76%Marked serious
10%Recovered
38%Died or euthanised
30 daysTypical onset
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How soon it started

Same day
0 0.0%
1–2 days
2 10%
3–7 days
2 10%
1–4 weeks
7 35%
Over a month
9 45%

How the animals did

Recovered
3 10%
Still unwell when reported
7 24%
Died
1 3.4%
Euthanised
10 34%
Not known
8 28%

Problems reported at the same time

14 48%
14 48%
11 38%
Abnormal ultrasound finding
7 24%
Tremors
5 17%

Age of the animals

Under 1 year
0
1–3 years
1
4–7 years
2
8–11 years
12
12+ years
14

About this medicine

Type: medicine.

Questions owners ask

Can Thyroxine cause kidney problems in dogs?
29 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 30 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).

Kidney problems with similar medicines

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