Butorphanol side effects in Shih Tzus

77 FDA reports involve Butorphanol in a Shih Tzu. These are the problems they describe.

Death
22 29%
Cardiac arrest
14 18%
Seizures
14 18%
Didn't work as expected
11 14%
Loss of appetite
10 13%
Lethargy
10 13%
Pale mucous membrane
9 12%
Bradycardia
9 12%
Abnormal radiograph finding
8 10%
Breathing problems
7 9.1%
Vomiting
7 9.1%
Restlessness or agitation
6 7.8%

All reports for Butorphanol in dogs