Drug profile

The FDA adverse-event record for Ivermectin 1% Injection

183 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Ivermectin 1% Injection. See the species affected, top reactions, and outcomes below.

183
adverse-event reports
7.1%
death-coded share
Dog
most-reported species
45
Uncoded sign - 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.
183
Total Reports
13
Deaths Reported
7.1%
Death Rate

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
Diarrhoea 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 Adverse Event Insights

183 reports name Ivermectin 1% Injection; 13 recorded a death outcome (7.1% of reported events, not a population-level mortality rate). Active ingredient: Ivermectin 1% Injection. Administration routes: Oral, Unknown, Subcutaneous, Ophthalmic.

By species: Dog (92 reports), Unknown (42 reports), Human (17 reports). By breed: Unknown (61), Dog (other) (10), Retriever - Labrador (9).

Leading clinical signs: Uncoded sign (45), Ataxia (31), Blindness (19), Lethargy (see also Central nervous system depression in 'Neurological') (15). Outcome, 145 coded reports: Outcome Unknown leads at 63.4%.

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.