Abnormal ultrasound finding after Butorphanol in dogs

96 reports to the FDA describe abnormal ultrasound finding in dogs given Butorphanol. That is 2.2% 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.

96Reports

83%Marked serious

16%Recovered

40%Died or euthanised

4 daysTypical onset

How soon it started

Same day

20 26%

1–2 days

10 13%

3–7 days

14 18%

1–4 weeks

14 18%

Over a month

19 25%

How the animals did

Recovered

15 16%

Still unwell when reported

30 31%

Died

13 14%

Euthanised

25 26%

Not known

13 14%

Problems reported at the same time

65 68%

59 61%

53 55%

51 53%

38 40%

35 36%

32 33%

Abnormal radiograph finding

25 26%

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 abnormal ultrasound finding in dogs?: 96 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 4 days 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).

Abnormal ultrasound finding with similar medicines

Abnormal ultrasound finding after Melarsomine (Immiticide) 64 reports · 0.3% of its reports
Abnormal ultrasound finding after Polysulfated Glycosaminoglycan 118 reports · 2.2% of its reports
Abnormal ultrasound finding after Diphenhydramine 87 reports · 1.8% of its reports
Abnormal ultrasound finding after Cefpodoxime 114 reports · 2.8% of its reports
Abnormal ultrasound finding after Tramadol 189 reports · 5.0% of its reports
Abnormal ultrasound finding after Desoxycorticosterone Pivalate 35 reports · 1.0% of its reports
Abnormal ultrasound finding after Propofol 61 reports · 2.0% of its reports
Abnormal ultrasound finding after Isoflurane 74 reports · 2.7% of its reports
Abnormal ultrasound finding after Cephalexin 47 reports · 1.8% of its reports
Abnormal ultrasound finding after Atipamezole 33 reports · 1.2% of its reports

All reported side effects of Butorphanol in dogs · Medicines most reported with abnormal ultrasound finding