Drug profile

The FDA adverse-event record for Distemper-Leptospirosis Vaccine

17 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Distemper-Leptospirosis Vaccine. See the species affected, top reactions, and outcomes below.

17
adverse-event reports
11.8%
death-coded share
Dog
most-reported species
5
Lethargy (see also Central nervous system depression in Neurological) - 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.
17
Total Reports
2
Deaths Reported
11.8%
Death Rate

Active Ingredients

Distemper-Leptospirosis Vaccine

Administration Routes

UnknownSubcutaneousParenteral

Species Affected

Dog 17

Most Affected Breeds

Boxer (German Boxer) 4
Corgi (unspecified) 2
Cattle Dog - Flanders (Bouvier) 1
Retriever - Labrador 1
Setter - Irish Red 1
Spitz - German Pomeranian 1
Brittany 1
Pit Bull 1
Cattle Dog - Australian (blue heeler, red heeler, Queensland cattledog) 1
Retriever - Golden 1

Most Reported Reactions

Lethargy (see also Central nervous system depression in Neurological) 5
Lack of efficacy (bacteria) - Borrelia 4
Vomiting 3
Limping 3
Weight loss 3
Lack of efficacy (endoparasite) - heartworm 3
Not eating 3
Lethargy (see also Central nervous system depression in 'Neurological') 2
Behavioural disorder NOS 2
Diarrhoea 2
Decreased appetite 2
Inappropriate urination 2

Outcome Breakdown

Outcome Unknown
9 (52.9%)
Recovered/Normal
3 (17.6%)
Ongoing
3 (17.6%)
Died
2 (11.8%)

Distemper-Leptospirosis Vaccine Adverse Event Insights

17 reports name Distemper-Leptospirosis Vaccine; 2 recorded a death outcome (11.8% of reported events, not a population-level mortality rate). Active ingredient: Distemper-Leptospirosis Vaccine. Administration routes: Unknown, Subcutaneous, Parenteral.

By species: Dog (17 reports). By breed: Boxer (German Boxer) (4), Corgi (unspecified) (2), Cattle Dog - Flanders (Bouvier) (1).

Leading clinical signs: Lethargy (see also Central nervous system depression in Neurological) (5), Lack of efficacy (bacteria) - Borrelia (4), Vomiting (3), Limping (3). Outcome, 17 coded reports: Outcome Unknown leads at 52.9%.

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.