Methylprednisolone Acetate
1,660 adverse event reports submitted to the FDA
Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
1,660
Total Reports
291
Deaths Reported
1750.0%
Death Rate
Active Ingredients
Methylprednisolone Acetate
Administration Routes
UnknownSubcutaneousIntramuscularIntra-ArticularParenteralOralOtherIntravenousIntradermalOphthalmic
Species Affected
Cat 1,095
Dog 375
Unknown 132
Horse 53
Human 2
Cattle 1
Other 1
Rabbit 1
Most Affected Breeds
Domestic Shorthair 636
Unknown 135
Domestic (unspecified) 105
Domestic Longhair 72
Cat (other) 65
Domestic Mediumhair 51
Cat (unknown) 46
Retriever - Labrador 37
Dog (unknown) 36
Quarter Horse 28
Most Reported Reactions
Lethargy (see also Central nervous system depression in 'Neurological') 216
Vomiting 212
Anorexia 174
Death 154
Lack of efficacy - NOS 149
Weight loss 129
Other abnormal test result NOS 123
Death by euthanasia 118
INEFFECTIVE, ANTIINFLAMMATORY 106
Ataxia 101
Hyperglycaemia 88
Fever 85
Outcome Breakdown
Ongoing
658 (47.5%)
Outcome Unknown
236 (17.0%)
Recovered/Normal
200 (14.4%)
Died
183 (13.2%)
Euthanized
108 (7.8%)
Recovered with Sequela
1 (0.1%)
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.