Vocalising after Butorphanol in dogs

210 reports to the FDA describe vocalising in dogs given Butorphanol. That is 4.7% of all reports for this medicine, compared with 1.2% across reports for all dog medicines, so it is reported unusually often with this medicine.

210Reports
57%Marked serious
27%Recovered
18%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
106 62%
1–2 days
27 16%
3–7 days
12 7.0%
1–4 weeks
11 6.4%
Over a month
15 8.8%

How the animals did

Recovered
54 26%
Recovered with lasting effects
2 1.0%
Still unwell when reported
56 27%
Died
16 7.6%
Euthanised
21 10%
Not known
61 29%

Problems reported at the same time

Age of the animals

Under 1 year
15
1–3 years
51
4–7 years
57
8–11 years
44
12+ years
27

About this medicine

Type: medicine.

Questions owners ask

Can Butorphanol cause vocalising in dogs?
210 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 the same 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).

Vocalising with similar medicines

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