Hyperglycaemia after Butorphanol in cats

60 reports to the FDA describe hyperglycaemia in cats given Butorphanol. That is 2.7% of all reports for this medicine, compared with 1.9% across reports for all cat medicines.

60Reports
78%Marked serious
18%Recovered
33%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
21 41%
1–2 days
12 24%
3–7 days
10 20%
1–4 weeks
5 9.8%
Over a month
3 5.9%

How the animals did

Recovered
11 18%
Still unwell when reported
19 32%
Died
7 12%
Euthanised
13 22%
Not known
10 17%

Problems reported at the same time

Age of the animals

Under 1 year
5
1–3 years
14
4–7 years
8
8–11 years
14
12+ years
17

About this medicine

Type: medicine.

Questions owners ask

Can Butorphanol cause hyperglycaemia in cats?
60 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).

Hyperglycaemia with similar medicines

All reported side effects of Butorphanol in cats · Medicines most reported with hyperglycaemia