Drug profile

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

2,388 FDA reports name Recombinant E. Coli Bl21;Recombinant E. Coli Ecl19, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#94 of 2,679
by report volume (all drugs)
2,388
adverse-event reports
1.8%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Recombinant E. Coli Bl21;Recombinant E. Coli Ecl19 ranks #94 of 2679 by total reports (2,388) and #1007 of 1130 by death-coded share (1.8%). 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)
#94
This drug, reports of 2679
#1007
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 Bl21;Recombinant E. Coli Ecl19 has 2,388 reports now versus 2,235 in that prior snapshot: 153 more (6.8%).

Report change
+153
Death-coded reports
+3
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 Bl21;Recombinant E. Coli Ecl19 changes

Signature read: 2,388 reports place Recombinant E. Coli Bl21;Recombinant E. Coli Ecl19 in the upper third of FDA AER volume (#94 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.
2,388
Total Reports
42
Deaths Reported
1.8%
Death-coded share of reports

Active Ingredients

Recombinant E. Coli Bl21;Recombinant E. Coli Ecl19

Administration Routes

SubcutaneousUnknownOral

Species Affected

Dog 2,388

Most Affected Breeds

Retriever - Labrador 369
Retriever - Golden 293
Shepherd Dog - German 147
Crossbred Canine/dog 119
Shepherd Dog - Australian 87
Terrier - Bull - American Pit 77
Mountain Dog - Bernese 70
Siberian Husky 66
Shih Tzu 52
Collie - Border 46

Most Reported Reactions

Lack of efficacy (bacteria) - Borrelia 2,139
Medication error NOS 295
Intentional misuse 221
Lack of efficacy (ectoparasite) - tick NOS 211
Lack of efficacy (bacteria) - Anaplasma 144
Vomiting 77
Lethargy (see also Central nervous system depression in Neurological) 62
Facial swelling (see also Skin) 42
Not eating 32
Death by euthanasia 28
Hives (see also Skin) 27
Lack of efficacy (bacteria) - Ehrlichia 27

Outcome Breakdown

Ongoing
2,177 (91.2%)
Recovered/Normal
114 (4.8%)
Outcome Unknown
55 (2.3%)
Euthanized
28 (1.2%)
Died
14 (0.6%)

Recombinant E. Coli Bl21;Recombinant E. Coli Ecl19: low death-coded share 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 Bl21;Recombinant E. Coli Ecl19, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar death-coded share

Nearest other drugs by death-coded share (1.8% here), distinct from the volume row.

What to do with this drug

  • Compare Recombinant E. Coli Bl21;Recombinant E. Coli Ecl19'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 Bl21;Recombinant E. Coli Ecl19 (#94 of 2,679 by report volume); death-coded 1.8%. PlainBreed drug row · report volume stamp 2,388 · 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 →