Excessive thirst after Butorphanol in dogs

The FDA has received 76 reports of excessive thirst in dogs after Butorphanol. That is 1.7% of all reports for this medicine, compared with 1.4% across reports for all dog medicines.

76Reports
78%Marked serious
26%Recovered
24%Died or euthanised
2 daysTypical onset
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How soon it started

Same day
23 35%
1–2 days
11 17%
3–7 days
11 17%
1–4 weeks
13 20%
Over a month
7 11%

How the animals did

Recovered
18 24%
Recovered with lasting effects
2 2.6%
Still unwell when reported
20 26%
Died
5 6.6%
Euthanised
13 17%
Not known
18 24%

Problems reported at the same time

Age of the animals

Under 1 year
7
1–3 years
11
4–7 years
19
8–11 years
27
12+ years
11

About this medicine

Type: medicine.

Questions owners ask

Can Butorphanol cause excessive thirst in dogs?
76 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 2 days 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).

Excessive thirst with similar medicines

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