Drug profile

The FDA adverse-event record for Recombinant E. Coli Ecl19; Recombinant E. Coli Bl21

98 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Recombinant E. Coli Ecl19; Recombinant E. Coli Bl21. See the species affected, top reactions, and outcomes below.

98
adverse-event reports
11.2%
death-coded share
Dog
most-reported species
33
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.
98
Total Reports
11
Deaths Reported
11.2%
Death Rate

Active Ingredients

Recombinant E. Coli Ecl19; Recombinant E. Coli Bl21

Administration Routes

Subcutaneous

Species Affected

Dog 98

Most Affected Breeds

Retriever - Labrador 10
Shepherd Dog - German 7
Bulldog - French 5
Bulldog 5
Mixed (Dog) 4
Terrier - Jack Russell 4
Retriever - Golden 4
Retriever (unspecified) 3
Shepherd Dog - Australian 3
Collie - Border 3

Most Reported Reactions

Lethargy (see also Central nervous system depression in 'Neurological') 33
Vomiting 25
Lack of efficacy (ectoparasite) - tick NOS 15
Other abnormal test result NOS 13
Anorexia 11
Diarrhoea 10
Fever 7
Injection site pain 7
Shaking 7
Hives (see also 'Skin') 7
Lameness 6
Musculoskeletal disorder NOS 6

Outcome Breakdown

Ongoing
50 (51.0%)
Recovered/Normal
32 (32.7%)
Died
6 (6.1%)
Outcome Unknown
5 (5.1%)
Euthanized
5 (5.1%)

Recombinant E. Coli Ecl19; Recombinant E. Coli Bl21 Adverse Event Insights

98 reports name Recombinant E. Coli Ecl19; Recombinant E. Coli Bl21; 11 recorded a death outcome (11.2% of reported events, not a population-level mortality rate). Active ingredient: Recombinant E. Coli Ecl19; Recombinant E. Coli Bl21. Administration route: Subcutaneous.

By species: Dog (98 reports). By breed: Retriever - Labrador (10), Shepherd Dog - German (7), Bulldog - French (5).

Leading clinical signs: Lethargy (see also Central nervous system depression in 'Neurological') (33), Vomiting (25), Lack of efficacy (ectoparasite) - tick NOS (15), Other abnormal test result NOS (13). Outcome, 98 coded reports: Ongoing leads at 51.0%.

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.