Levothyroxine side effects in Beagles

92 FDA reports involve Levothyroxine in a Beagle. These are the problems they describe.

Vomiting
20 22%
Didn't work as expected
19 21%
Lethargy
17 18%
Loss of appetite
16 17%
Liver problems
12 13%
Diarrhea
10 11%
Death
9 9.8%
Tremors
8 8.7%
Didn't stop worms
6 6.5%
Seizures
6 6.5%
Underdose
5 5.4%
Itching
5 5.4%

All reports for Levothyroxine in dogs