Drug profile

The FDA adverse-event record for Cyclosporine A

5,397 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Cyclosporine A. See the species affected, top reactions, and outcomes below.

5,397
adverse-event reports
4.5%
death-coded share
Dog
most-reported species
920
Emesis - top reaction
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Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
5,397
Total Reports
245
Deaths Reported
4.5%
Death Rate

Active Ingredients

Cyclosporine A

Administration Routes

OralUnknownTopicalOphthalmic

Species Affected

Dog 3,726
Cat 943
Unknown 711
Human 17

Most Affected Breeds

Unknown 744
Domestic Shorthair 635
Retriever - Labrador 323
Shih Tzu 243
Retriever - Golden 199
Terrier - West Highland White 151
Shepherd Dog - German 145
Spaniel - Cocker American 128
Terrier - Yorkshire 122
Pug 120

Most Reported Reactions

Emesis 920
Diarrhoea 785
Other abnormal test result NOS 735
Lethargy (see also Central nervous system depression in 'Neurological') 638
Vomiting 481
Uncoded sign 392
Anorexia 318
Weight loss 314
Emesis (multiple) 266
Product Defect, General 204
Gingival hyperplasia 201
Panting 174

Outcome Breakdown

Recovered/Normal
2,545 (54.3%)
Ongoing
1,161 (24.8%)
Outcome Unknown
681 (14.5%)
Euthanized
184 (3.9%)
Died
61 (1.3%)
Recovered with Sequela
52 (1.1%)

Cyclosporine A Adverse Event Insights

5,397 reports name Cyclosporine A; 245 recorded a death outcome (4.5% of reported events, not a population-level mortality rate). Active ingredient: Cyclosporine A. Administration routes: Oral, Unknown, Topical, Ophthalmic.

By species: Dog (3,726 reports), Cat (943 reports), Unknown (711 reports). By breed: Unknown (744), Domestic Shorthair (635), Retriever - Labrador (323).

Leading clinical signs: Emesis (920), Diarrhoea (785), Other abnormal test result NOS (735), Lethargy (see also Central nervous system depression in 'Neurological') (638). Outcome, 4,684 coded reports: Recovered/Normal leads at 54.3%.

Read these counts as reporting volume, not risk: per our methodology, a widely-prescribed drug will rack up more raw FDA reports in a given year than a rarely-used one at an identical true rate, so we recommend comparing within similar-exposure products rather than across the full 2025 catalog.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

Every figure on PlainBreed is rendered directly from FDA openFDA adverse event data, no number is typed in by an editor. This page draws directly on FDA openFDA data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.