Drug profile

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

98 FDA reports name Recombinant E. Coli Ecl19; Recombinant E. Coli Bl21, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#789 of 2,679
by report volume (all drugs)
98
adverse-event reports
11.2%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Recombinant E. Coli Ecl19; Recombinant E. Coli Bl21 ranks #784 of 2679 by total reports (98) and #494 of 1130 by death-coded share (11.2%). National dual: Milbemycin Oxime + Spinosad is #1 of 2679 drugs by total adverse-event reports (149,624) at death-coded-share rank 965 of 1130 drugs with at least 50 reports (2.3%); separately, Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) is #1 highest death-coded share at 97.8% (report rank #821).

149,624
Milbemycin Oxime + Spinosad reports (#1)
97.8%
Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) death share (#1)
#784
This drug, reports of 2679
#494
This drug, death share of 1130

Report volume reflects how common a breed or drug is and how often owners and vets file — not actual risk. Death-coded share ranks are limited to entries with enough reports to be meaningful. The two maps do not agree at #1.

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Recombinant E. Coli Ecl19; Recombinant E. Coli Bl21 has 98 reports now versus 98 in that prior snapshot: 0 the same number of (0.0%).

Report change
+0
Death-coded reports
+0
Death-coded share
−0.0 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Recombinant E. Coli Ecl19; Recombinant E. Coli Bl21 changes

Signature read: 98 reports place Recombinant E. Coli Ecl19; Recombinant E. Coli Bl21 in the upper third of FDA AER volume (#789 of 2,679).

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-coded share of reports

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
Shepherd Dog - Australian 3
Retriever (unspecified) 3
Boxer (German Boxer) 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: high report volume in the FDA AER row

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.

High-volume nationwide drug peers

Two openFDA-derived peer sets for Recombinant E. Coli Ecl19; Recombinant E. Coli Bl21, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

What to do with this drug

  • Compare Recombinant E. Coli Ecl19; Recombinant E. Coli Bl21's report volume and death-coded share against similar drugs nationwide. See similar drugs
  • Read how death-coded share differs from a mortality rate before drawing conclusions. Understanding adverse events
  • Browse the full drug directory to compare report counts across products. All drugs

A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Recombinant E. Coli Ecl19; Recombinant E. Coli Bl21 (#789 of 2,679 by report volume); death-coded 11.2%. PlainBreed drug row · report volume stamp 98 · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →