Drug profile

The FDA adverse-event record for Potassium Bromide

500 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Potassium Bromide. See the species affected, top reactions, and outcomes below.

500
adverse-event reports
6.2%
death-coded share
Dog
most-reported species
83
Tablets, Abnormal - top reaction
Verify with FDA CVM →
Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
500
Total Reports
31
Deaths Reported
6.2%
Death Rate

Active Ingredients

Potassium Bromide

Administration Routes

OralUnknownTopical

Species Affected

Dog 376
Unknown 119
Human 3
Cat 2

Most Affected Breeds

Unknown 126
Retriever - Labrador 31
Chihuahua 21
Crossbred Canine/dog 21
Beagle 17
Shepherd Dog - Australian 13
Shepherd Dog - German 13
Retriever - Golden 13
Boxer (German Boxer) 12
Dachshund (unspecified) 10

Most Reported Reactions

Tablets, Abnormal 83
Seizure NOS 78
Lack of efficacy - NOS 70
Lethargy (see also Central nervous system depression in 'Neurological') 45
Ataxia 40
Other abnormal test result NOS 31
Vomiting 29
INEFFECTIVE, SEIZURES 23
Diarrhoea 19
Elevated serum alkaline phosphatase (SAP) 17
Limb weakness 17
Death 15

Outcome Breakdown

Outcome Unknown
140 (36.6%)
Recovered/Normal
119 (31.2%)
Ongoing
83 (21.7%)
Died
16 (4.2%)
Euthanized
15 (3.9%)
Recovered with Sequela
9 (2.4%)

Potassium Bromide Adverse Event Insights

500 reports name Potassium Bromide; 31 recorded a death outcome (6.2% of reported events, not a population-level mortality rate). Active ingredient: Potassium Bromide. Administration routes: Oral, Unknown, Topical.

By species: Dog (376 reports), Unknown (119 reports), Human (3 reports). By breed: Unknown (126), Retriever - Labrador (31), Chihuahua (21).

Leading clinical signs: Tablets, Abnormal (83), Seizure NOS (78), Lack of efficacy - NOS (70), Lethargy (see also Central nervous system depression in 'Neurological') (45). Outcome, 382 coded reports: Outcome Unknown leads at 36.6%.

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.