Overdose after Butorphanol in dogs

53 reports to the FDA describe overdose in dogs given Butorphanol. That is 1.2% of all reports for this medicine, compared with 1.3% across reports for all dog medicines.

53Reports
64%Marked serious
26%Recovered
21%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
30 63%
1–2 days
5 10%
3–7 days
5 10%
1–4 weeks
1 2.1%
Over a month
7 15%

How the animals did

Recovered
14 26%
Still unwell when reported
18 34%
Died
4 7.5%
Euthanised
7 13%
Not known
10 19%

Problems reported at the same time

Age of the animals

Under 1 year
4
1–3 years
9
4–7 years
19
8–11 years
15
12+ years
5

About this medicine

Type: medicine.

Questions owners ask

Can Butorphanol cause overdose in dogs?
53 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).

Overdose with similar medicines

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