Levothyroxine side effects in Labrador Retrievers

300 FDA reports involve Levothyroxine in a Labrador Retriever. These are the problems they describe.

Vomiting
81 27%
Loss of appetite
55 18%
Lethargy
51 17%
Didn't work as expected
45 15%
Diarrhea
38 13%
Liver problems
38 13%
Weakness
26 8.7%
Weight loss
25 8.3%
Death
24 8.0%
Seizures
21 7.0%
Kidney problems
18 6.0%
Breathing problems
18 6.0%

All reports for Levothyroxine in dogs