Medetomidine side effects in dogs

2,127 reports sent to the FDA between 1996 and 2025 involve Medetomidine in dogs. The most reported problems were sedation prolonged, vomiting, bradycardia. 3.1% were marked serious, and where it was recorded, signs eased after stopping the medicine in 60% of cases.

2,127Reports
3.1%Marked serious
95%Only medicine involved
2.7%Recovered
19%Died or euthanised
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About this medicine

Type: medicine.

Most reported side effects

Share = percentage of this medicine's reports that mention the problem. One report can list several problems.

Reports that it didn't work

Some reports are about the medicine not working (for example a dog still getting fleas or heartworm), not about a side effect.

Didn't stop worms
2 0.1%
Didn't prevent heartworm
1 0.0%

How soon problems started

Same day
59 58%
1–2 days
14 14%
3–7 days
10 9.8%
1–4 weeks
11 11%
Over a month
8 7.8%

Time from the first dose to the first sign, where both dates were reported (102 reports).

How the animals did

Recovered
55 2.6%
Recovered with lasting effects
2 0.1%
Still unwell when reported
15 0.7%
Died
407 19%
Euthanised
3 0.1%
Not known
1,645 77%

Breeds named most often

Popular breeds appear more often because there are more of them.

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