Inappropriate urination after Butorphanol in dogs

The FDA has received 42 reports of inappropriate urination in dogs after Butorphanol. That is 0.9% of all reports for this medicine, compared with 0.5% across reports for all dog medicines, so it is reported unusually often with this medicine.

42Reports

67%Marked serious

24%Recovered

24%Died or euthanised

1 daysTypical onset

How soon it started

Same day

11 33%

1–2 days

10 30%

3–7 days

0 0.0%

1–4 weeks

7 21%

Over a month

5 15%

How the animals did

Recovered

10 24%

Still unwell when reported

12 29%

Died

2 4.8%

Euthanised

8 19%

Not known

10 24%

Problems reported at the same time

21 50%

17 40%

15 36%

12 29%

Didn't work as expected

11 26%

Death

10 24%

Vocalising

10 24%

Breathing problems

10 24%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Type: medicine.

Questions owners ask

Can Butorphanol cause inappropriate urination in dogs?: 42 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 1 day 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).

Inappropriate urination with similar medicines

Inappropriate urination after Melarsomine (Immiticide) 86 reports · 0.4% of its reports
Inappropriate urination after Polysulfated Glycosaminoglycan 49 reports · 0.9% of its reports
Inappropriate urination after Diphenhydramine 70 reports · 1.5% of its reports
Inappropriate urination after Cefpodoxime 56 reports · 1.4% of its reports
Inappropriate urination after Tramadol 79 reports · 2.1% of its reports
Inappropriate urination after Florfenicol + Mometasone + Terbinafine 49 reports · 1.4% of its reports
Inappropriate urination after Desoxycorticosterone Pivalate 74 reports · 2.2% of its reports
Inappropriate urination after Propofol 22 reports · 0.7% of its reports
Inappropriate urination after Isoflurane 28 reports · 1.0% of its reports
Inappropriate urination after Cephalexin 26 reports · 1.0% of its reports

All reported side effects of Butorphanol in dogs · Medicines most reported with inappropriate urination