Drug profile

The FDA adverse-event record for Distemper-Lepto Vaccine

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

50
adverse-event reports
6.0%
death-coded share
Dog
most-reported species
24
Vomiting - 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.
50
Total Reports
3
Deaths Reported
6.0%
Death Rate

Active Ingredients

Distemper-Lepto Vaccine

Administration Routes

SubcutaneousUnknownOral

Species Affected

Dog 50

Most Affected Breeds

Terrier - Bull - American Pit 8
Crossbred Canine/dog 5
Boxer (German Boxer) 4
Retriever - Labrador 4
Bulldog - French 4
Siberian Husky 3
Chihuahua 2
Great Pyrenees 1
Poodle - Miniature 1
Beagle 1

Most Reported Reactions

Vomiting 24
Lethargy (see also Central nervous system depression in 'Neurological') 19
Facial swelling (see also 'Skin') 14
Anaphylaxis 13
Hives (see also 'Skin') 8
Seizure NOS 6
Diarrhoea 6
Pale mucous membrane 4
Periorbital oedema 3
Itching 3
Collapse NOS (see also 'Cardio-vascular' and 'Neurological disorders') 3
Death 3

Outcome Breakdown

Ongoing
34 (68.0%)
Recovered/Normal
11 (22.0%)
Died
3 (6.0%)
Outcome Unknown
2 (4.0%)

Distemper-Lepto Vaccine Adverse Event Insights

50 reports name Distemper-Lepto Vaccine; 3 recorded a death outcome (6.0% of reported events, not a population-level mortality rate). Active ingredient: Distemper-Lepto Vaccine. Administration routes: Subcutaneous, Unknown, Oral.

By species: Dog (50 reports). By breed: Terrier - Bull - American Pit (8), Crossbred Canine/dog (5), Boxer (German Boxer) (4).

Leading clinical signs: Vomiting (24), Lethargy (see also Central nervous system depression in 'Neurological') (19), Facial swelling (see also 'Skin') (14), Anaphylaxis (13). Outcome, 50 coded reports: Ongoing leads at 68.0%.

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.