Lethargy after Methylprednisolone in dogs

The FDA has received 111 reports of lethargy in dogs after Methylprednisolone. That is 16% of all reports for this medicine, compared with 11% across reports for all dog medicines.

111Reports
42%Marked serious
11%Recovered
26%Died or euthanised
6 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
20 28%
1–2 days
10 14%
3–7 days
7 9.9%
1–4 weeks
13 18%
Over a month
21 30%

How the animals did

Recovered
11 9.9%
Recovered with lasting effects
1 0.9%
Still unwell when reported
37 33%
Died
15 14%
Euthanised
14 13%
Not known
33 30%

Problems reported at the same time

Age of the animals

Under 1 year
4
1–3 years
23
4–7 years
38
8–11 years
34
12+ years
12

About this medicine

Type: medicine.

Questions owners ask

Can Methylprednisolone cause lethargy in dogs?
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 6 days 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 Methylprednisolone in dogs · Medicines most reported with lethargy