Drug profile

The FDA adverse-event record for Ivermectin 1% Injection

183 FDA reports name Ivermectin 1% Injection, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#560 of 2,679
by report volume (all drugs)
183
adverse-event reports
7.1%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Ivermectin 1% Injection ranks #558 of 2679 by total reports (183) and #690 of 1130 by death-coded share (7.1%). 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)
#558
This drug, reports of 2679
#690
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. Ivermectin 1% Injection has 183 reports now versus 183 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 Ivermectin 1% Injection changes

Signature read: 183 reports place Ivermectin 1% Injection in the upper third of FDA AER volume (#560 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.
183
Total Reports
13
Deaths Reported
7.1%
Death-coded share of reports

Active Ingredients

Ivermectin 1% Injection

Administration Routes

OralUnknownSubcutaneousOphthalmicIntramuscularParenteralTopicalIntradermal

Species Affected

Dog 92
Unknown 42
Human 17
Cattle 14
Pig 7
Horse 4
Cat 3
Guinea Pig 1
Mouse 1
Goat 1

Most Affected Breeds

Unknown 61
Dog (other) 10
Retriever - Labrador 9
Pit Bull 9
Cattle (unknown) 8
Dog (unknown) 8
Bulldog 6
Pig (unknown) 5
Chihuahua 4
Boxer (German Boxer) 3

Most Reported Reactions

Uncoded sign 45
Ataxia 31
Blindness 19
Lethargy (see also Central nervous system depression in 'Neurological') 15
Mydriasis 15
Vomiting 14
Caps, Abnormal 13
Tremor 12
INEFFECTIVE, HEARTWORM LARVAE 9
Trembling 9
Color, Abnormal 8
INEFFECTIVE, HEARTWORM ADULTS 8

Outcome Breakdown

Outcome Unknown
92 (63.4%)
Recovered/Normal
28 (19.3%)
Died
10 (6.9%)
Recovered with Sequela
8 (5.5%)
Ongoing
4 (2.8%)
Euthanized
3 (2.1%)

Ivermectin 1% Injection: 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 Ivermectin 1% Injection, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar report volume

Nearest other drugs by FDA report count (183 here).

Similar death-coded share

Nearest other drugs by death-coded share (7.1% here), distinct from the volume row.

What to do with this drug

  • Compare Ivermectin 1% Injection'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 Ivermectin 1% Injection (#560 of 2,679 by report volume); death-coded 7.1%. PlainBreed drug row · report volume stamp 183 · 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 →