Lethargy after Midazolam in cats

The FDA has received 111 reports of lethargy in cats after Midazolam. That is 15% of all reports for this medicine, compared with 14% across reports for all cat medicines.

111Reports
65%Marked serious
25%Recovered
27%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
49 48%
1–2 days
43 42%
3–7 days
7 6.9%
1–4 weeks
3 2.9%
Over a month
0 0.0%

How the animals did

Recovered
28 25%
Still unwell when reported
39 35%
Died
14 13%
Euthanised
16 14%
Not known
14 13%

Problems reported at the same time

Age of the animals

Under 1 year
13
1–3 years
15
4–7 years
23
8–11 years
21
12+ years
34

About this medicine

Type: medicine.

Questions owners ask

Can Midazolam cause lethargy in cats?
111 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 1 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 Midazolam in cats · Medicines most reported with lethargy