Lethargy after Detomidine in horses

The FDA has received 41 reports of lethargy in horses after Detomidine. That is 4.1% of all reports for this medicine, compared with 7.9% across reports for all horse medicines, so it is reported less often than average with this medicine.

41Reports
46%Marked serious
39%Recovered
12%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
18 58%
1–2 days
12 39%
3–7 days
0 0.0%
1–4 weeks
1 3.2%
Over a month
0 0.0%

How the animals did

Recovered
16 39%
Still unwell when reported
6 15%
Died
2 4.9%
Euthanised
3 7.3%
Not known
14 34%

Problems reported at the same time

Age of the animals

Under 1 year
0
1–3 years
4
4–7 years
6
8–11 years
9
12+ years
17

About this medicine

Type: medicine.

Questions owners ask

Can Detomidine cause lethargy in horses?
41 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).

Lethargy with similar medicines

All reported side effects of Detomidine in horses · Medicines most reported with lethargy