Drug profile

The FDA adverse-event record for Equine Potomavac - 2639.00

16 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Equine Potomavac - 2639.00. See the species affected, top reactions, and outcomes below.

16
adverse-event reports
18.8%
death-coded share
Horse
most-reported species
5
Other abnormal test result NOS - 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.
16
Total Reports
3
Deaths Reported
18.8%
Death Rate

Active Ingredients

Equine Potomavac - 2639.00

Administration Routes

IntramuscularUnknown

Species Affected

Horse 16

Most Affected Breeds

Arab 3
Quarter Horse 2
Thoroughbred 2
Pony (unspecified) 2
Morgan 2
Saddlebred - American 1
Crossbred Equine/horse 1
Unknown 1
Warmblood (unspecified) 1
Paint 1

Most Reported Reactions

Other abnormal test result NOS 5
Lameness 5
Diarrhoea 4
Lack of efficacy - NOS 3
Dehydration 3
Fever 3
Colic 3
Anorexia 3
Death by euthanasia 3
Lack of efficacy (bacteria) - NOS 3
Behavioural disorder NOS 2
Tachypnoea 2

Outcome Breakdown

Recovered/Normal
7 (43.8%)
Ongoing
4 (25.0%)
Euthanized
3 (18.8%)
Outcome Unknown
2 (12.5%)

Equine Potomavac - 2639.00 Adverse Event Insights

16 reports name Equine Potomavac - 2639.00; 3 recorded a death outcome (18.8% of reported events, not a population-level mortality rate). Active ingredient: Equine Potomavac - 2639.00. Administration routes: Intramuscular, Unknown.

By species: Horse (16 reports). By breed: Arab (3), Quarter Horse (2), Thoroughbred (2).

Leading clinical signs: Other abnormal test result NOS (5), Lameness (5), Diarrhoea (4), Lack of efficacy - NOS (3). Outcome, 16 coded reports: Recovered/Normal leads at 43.8%.

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.