Pain after Butorphanol in dogs

The FDA has received 190 reports of pain in dogs after Butorphanol. That is 4.3% of all reports for this medicine, compared with 0.7% across reports for all dog medicines, so it is reported unusually often with this medicine.

190Reports
55%Marked serious
21%Recovered
17%Died or euthanised
1 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
50 33%
1–2 days
47 31%
3–7 days
22 15%
1–4 weeks
16 11%
Over a month
16 11%

How the animals did

Recovered
38 20%
Recovered with lasting effects
2 1.1%
Still unwell when reported
38 20%
Died
19 10%
Euthanised
14 7.4%
Not known
79 42%

Problems reported at the same time

Age of the animals

Under 1 year
7
1–3 years
35
4–7 years
55
8–11 years
68
12+ years
18

About this medicine

Type: medicine.

Questions owners ask

Can Butorphanol cause pain in dogs?
190 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).

Pain with similar medicines

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