Diphenhydramine side effects in Yorkshire Terriers

161 FDA reports involve Diphenhydramine in a Yorkshire Terrier. These are the problems they describe.

Vomiting
73 45%
Lethargy
46 29%
Loss of appetite
40 25%
Diarrhea
35 22%
Allergic reaction
34 21%
Itching
20 12%
Didn't work as expected
18 11%
Death
16 9.9%
Breathing problems
15 9.3%
Behaviour change
14 8.7%
Swelling
14 8.7%
Tremors
13 8.1%

All reports for Diphenhydramine in dogs