Itching after Butorphanol in dogs

149 reports to the FDA describe itching in dogs given Butorphanol. That is 3.4% of all reports for this medicine, compared with 4.3% across reports for all dog medicines.

149Reports
55%Marked serious
40%Recovered
10%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
67 55%
1–2 days
10 8.3%
3–7 days
13 11%
1–4 weeks
14 12%
Over a month
17 14%

How the animals did

Recovered
58 39%
Recovered with lasting effects
1 0.7%
Still unwell when reported
40 27%
Died
8 5.4%
Euthanised
7 4.7%
Not known
35 23%

Problems reported at the same time

Age of the animals

Under 1 year
20
1–3 years
31
4–7 years
50
8–11 years
29
12+ years
15

About this medicine

Type: medicine.

Questions owners ask

Can Butorphanol cause itching in dogs?
149 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).

Itching with similar medicines

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