Pale mucous membrane after Butorphanol in dogs

146 reports to the FDA describe pale mucous membrane in dogs given Butorphanol. That is 3.3% 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.

146Reports
82%Marked serious
26%Recovered
42%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
74 59%
1–2 days
15 12%
3–7 days
11 8.8%
1–4 weeks
12 9.6%
Over a month
13 10%

How the animals did

Recovered
38 26%
Still unwell when reported
34 23%
Died
35 24%
Euthanised
27 18%
Not known
12 8.2%

Problems reported at the same time

Age of the animals

Under 1 year
29
1–3 years
40
4–7 years
34
8–11 years
32
12+ years
7

About this medicine

Type: medicine.

Questions owners ask

Can Butorphanol cause pale mucous membrane in dogs?
146 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).

Pale mucous membrane with similar medicines

All reported side effects of Butorphanol in dogs · Medicines most reported with pale mucous membrane