Hypertension after Isoflurane in dogs

The FDA has received 25 reports of hypertension in dogs after Isoflurane. That is 0.9% of all reports for this medicine, compared with 0.1% across reports for all dog medicines, so it is reported unusually often with this medicine.

25Reports
64%Marked serious
40%Recovered
8.0%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
15 71%
1–2 days
1 4.8%
3–7 days
2 9.5%
1–4 weeks
1 4.8%
Over a month
2 9.5%

How the animals did

Recovered
10 40%
Still unwell when reported
9 36%
Euthanised
2 8.0%
Not known
4 16%

Problems reported at the same time

Age of the animals

Under 1 year
3
1–3 years
7
4–7 years
9
8–11 years
5
12+ years
0

About this medicine

Type: medicine.

Questions owners ask

Can Isoflurane cause hypertension in dogs?
25 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).

Hypertension with similar medicines

All reported side effects of Isoflurane in dogs · Medicines most reported with hypertension