Drug profile

The FDA adverse-event record for Potassium Bromide

523 FDA reports name Potassium Bromide, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#295 of 2,679
by report volume (all drugs)
523
adverse-event reports
6.1%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Potassium Bromide ranks #293 of 2679 by total reports (523) and #727 of 1130 by death-coded share (6.1%). 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)
#293
This drug, reports of 2679
#727
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 Bromide has 523 reports now versus 515 in that prior snapshot: 8 more (1.6%).

Report change
+8
Death-coded reports
+1
Death-coded share
+0.1 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 Bromide changes

Signature read: 523 reports place Potassium Bromide in the upper third of FDA AER volume (#295 of 2,679).

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
523
Total Reports
32
Deaths Reported
6.1%
Death-coded share of reports

Active Ingredients

Potassium Bromide

Administration Routes

OralUnknownTopical

Species Affected

Dog 390
Unknown 127
Human 3
Cat 3

Most Affected Breeds

Unknown 134
Retriever - Labrador 31
Crossbred Canine/dog 22
Chihuahua 21
Beagle 17
Retriever - Golden 15
Shepherd Dog - German 14
Shepherd Dog - Australian 13
Boxer (German Boxer) 12
Dachshund (unspecified) 10

Most Reported Reactions

Tablets, Abnormal 94
Seizure NOS 79
Lack of efficacy - NOS 74
Ataxia 44
Lethargy (see also Central nervous system depression in 'Neurological') 42
Other abnormal test result NOS 34
Vomiting 29
INEFFECTIVE, SEIZURES 26
Diarrhoea 20
Elevated serum alkaline phosphatase (SAP) 17
Limb weakness 17
Increased seizure frequency 17

Outcome Breakdown

Outcome Unknown
145 (36.4%)
Recovered/Normal
124 (31.2%)
Ongoing
87 (21.9%)
Died
16 (4.0%)
Euthanized
16 (4.0%)
Recovered with Sequela
10 (2.5%)

Potassium Bromide: high report volume 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.

High-volume nationwide drug peers

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

Similar report volume

Nearest other drugs by FDA report count (523 here).

Similar death-coded share

Nearest other drugs by death-coded share (6.1% 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 Bromide (#295 of 2,679 by report volume); death-coded 6.1%. PlainBreed drug row · report volume stamp 523 · 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 →