Abnormal radiograph finding after Methylprednisolone in cats

The FDA has received 90 reports of abnormal radiograph finding in cats after Methylprednisolone. That is 5.6% of all reports for this medicine, compared with 1.0% across reports for all cat medicines, so it is reported unusually often with this medicine.

90Reports

60%Marked serious

3.3%Recovered

50%Died or euthanised

3 daysTypical onset

How soon it started

Same day

16 27%

1–2 days

14 23%

3–7 days

17 28%

1–4 weeks

11 18%

Over a month

2 3.3%

How the animals did

Recovered

3 3.3%

Still unwell when reported

31 34%

Died

29 32%

Euthanised

16 18%

Not known

11 12%

Problems reported at the same time

53 59%

45 50%

44 49%

36 40%

31 34%

27 30%

23 26%

20 22%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Type: medicine.

Questions owners ask

Can Methylprednisolone cause abnormal radiograph finding in cats?: 90 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 3 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).

Abnormal radiograph finding with similar medicines

Abnormal radiograph finding after Ketamine 48 reports · 1.5% of its reports
Abnormal radiograph finding after Butorphanol 65 reports · 2.9% of its reports
Abnormal radiograph finding after Isoflurane 36 reports · 1.8% of its reports
Abnormal radiograph finding after Tiletamine + Zolazepam 27 reports · 1.6% of its reports
Abnormal radiograph finding after Propofol 40 reports · 3.4% of its reports
Abnormal radiograph finding after Atipamezole 36 reports · 3.5% of its reports
Abnormal radiograph finding after Clindamycin 21 reports · 4.4% of its reports
Abnormal radiograph finding after Famotidine 29 reports · 7.1% of its reports
Abnormal radiograph finding after Diphenhydramine 21 reports · 5.7% of its reports
Abnormal radiograph finding after Furosemide 43 reports · 14% of its reports

All reported side effects of Methylprednisolone in cats · Medicines most reported with abnormal radiograph finding