Drug profile

The FDA adverse-event record for Fludrocortisone

56 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Fludrocortisone. Species, reactions, and outcomes follow.

#1047 of 2,679
by report volume (all drugs)
56
adverse-event reports
16.1%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Fludrocortisone ranks #1044 of 2679 by total reports (56) and #336 of 1130 by death-coded share (16.1%). National dual: Milbemycin Oxime + Spinosad is #1 of 2679 drugs by total adverse-event reports (149,624) at death-coded-share rank 965 of 1130 drugs with at least 50 reports (2.3%); separately, Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) is #1 highest death-coded share at 97.8% (report rank #821).

149,624
Milbemycin Oxime + Spinosad reports (#1)
97.8%
Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) death share (#1)
#1044
This drug, reports of 2679
#336
This drug, death share of 1130

Report volume reflects how common a breed or drug is and how often owners and vets file — not actual risk. Death-coded share ranks are limited to entries with enough reports to be meaningful. The two maps do not agree at #1.

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Fludrocortisone has 56 reports now versus 55 in that prior snapshot: 1 more (1.8%).

Report change
+1
Death-coded reports
+1
Death-coded share
+1.5 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Fludrocortisone changes

Signature read: death-coded report count at 9 is the most distinctive stamp on Fludrocortisone's FDA AER row.

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
56
Total Reports
9
Deaths Reported
16.1%
Death-coded share of reports

Active Ingredients

Fludrocortisone

Administration Routes

OralUnknown

Species Affected

Dog 56

Most Affected Breeds

Retriever - Labrador 12
Chihuahua 4
Poodle - Standard 4
Crossbred Canine/dog 3
Retriever - Golden 3
Poodle - Miniature 2
Pit Bull 2
American Pit Bull Terrier 2
Shiba Inu 2
Poodle (unspecified) 2

Most Reported Reactions

Vomiting 13
High sodium-potassium ratio (Na:K ratio) 12
Lack of efficacy - NOS 10
Polydipsia 8
Diarrhoea 7
Weight gain 6
Other abnormal test result NOS 6
Panting 6
Elevated blood urea nitrogen (BUN) 6
Lethargy (see also Central nervous system depression in 'Neurological') 6
Hypokalaemia 6
Polyuria 6

Outcome Breakdown

Outcome Unknown
21 (38.9%)
Recovered/Normal
13 (24.1%)
Ongoing
11 (20.4%)
Euthanized
5 (9.3%)
Died
4 (7.4%)

Fludrocortisone Adverse Event Insights

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.

Nationwide drugs with similar profiles

Two openFDA-derived peer sets for Fludrocortisone, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

What to do with this drug

A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.

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

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Fludrocortisone (#1047 of 2,679 by report volume); death-coded 16.1%. PlainBreed drug row · death-coded report count stamp 9 · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →