Cardiac arrest after Medetomidine in dogs

138 reports to the FDA describe cardiac arrest in dogs given Medetomidine. That is 6.5% of all reports for this medicine, compared with 0.2% across reports for all dog medicines, so it is reported unusually often with this medicine.

138Reports
2.2%Marked serious
1.4%Recovered
83%Died or euthanised
–Typical onset
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How the animals did

Recovered
2 1.4%
Died
114 83%
Not known
22 16%

Problems reported at the same time

Age of the animals

Under 1 year
20
1–3 years
38
4–7 years
39
8–11 years
23
12+ years
2

About this medicine

Type: medicine.

Questions owners ask

Can Medetomidine cause cardiac arrest in dogs?
138 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.
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).

Cardiac arrest with similar medicines

All reported side effects of Medetomidine in dogs · Medicines most reported with cardiac arrest