Drug profile

The FDA adverse-event record for Potassium

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

#1031 of 2,679
by report volume (all drugs)
58
adverse-event reports
22.4%
death-coded share
Cat
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Potassium ranks #1025 of 2679 by total reports (58) and #203 of 1130 by death-coded share (22.4%). 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)
#1025
This drug, reports of 2679
#203
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. Potassium has 58 reports now versus 55 in that prior snapshot: 3 more (5.5%).

Report change
+3
Death-coded reports
+0
Death-coded share
−1.2 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 Potassium changes

Signature read: Potassium's 22.4% death-coded share is among the highest in the openFDA drug corpus.

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
58
Total Reports
13
Deaths Reported
22.4%
Death-coded share of reports

Active Ingredients

Potassium

Administration Routes

UnknownOralIntravenousSubcutaneous

Species Affected

Cat 46
Human 6
Dog 6

Most Affected Breeds

Domestic Shorthair 30
Domestic Mediumhair 7
Unknown 6
Domestic Longhair 3
Cat (unknown) 2
Siamese 2
Spaniel - King Charles Cavalier 1
Terrier - Rat 1
Ragdoll 1
Terrier - Yorkshire 1

Most Reported Reactions

Hypokalaemia 13
Hyperglycaemia 11
Other abnormal test result NOS 10
Lethargy (see also Central nervous system depression in Neurological) 10
Dehydration 9
Death by euthanasia 9
Decreased haematocrit 9
Ketosis 8
Vomiting 7
Ataxia 6
Neutrophilia 6
Diarrhoea 6

Outcome Breakdown

Ongoing
23 (39.7%)
Outcome Unknown
11 (19.0%)
Recovered/Normal
11 (19.0%)
Euthanized
9 (15.5%)
Died
4 (6.9%)

Potassium: high death-coded share in the FDA AER row

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 Potassium, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar report volume

Nearest other drugs by FDA report count (58 here).

Similar death-coded share

Nearest other drugs by death-coded share (22.4% here), distinct from the volume row.

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 Potassium (#1031 of 2,679 by report volume); death-coded 22.4%. PlainBreed drug row · death-coded share stamp 22.4% · 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 →