Ivermectin 0.5% Pour-On Topical Solution
347 adverse event reports submitted to the FDA
Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
347
Total Reports
12
Deaths Reported
350.0%
Death Rate
Active Ingredients
Ivermectin 0.5% Pour-On Topical Solution
Administration Routes
TopicalOtherUnknownOralSubcutaneousTransdermal
Species Affected
Cattle 286
Unknown 38
Dog 10
Human 7
Cat 2
Goat 2
Sheep 1
Rabbit 1
Most Affected Breeds
Aberdeen Angus 121
Cattle (unknown) 59
Unknown 49
Crossbred Bovine/Cattle 46
Cattle (other) 35
Charolais 8
Simmental 5
Hereford cattle 3
Dog (unknown) 2
European 2
Most Reported Reactions
Systemic disorder NOS 179
Lack of efficacy (ectoparasite) - lice 145
Hair loss NOS 111
Scratching 85
Rubbing 66
INEFFECTIVE, LICE BITING 61
Pruritus 33
Itching 29
General hair loss 26
SKIN SCRAPING ABNORMAL 26
Rubra 23
Lack of efficacy (ectoparasite) - NOS 21
Outcome Breakdown
Outcome Unknown
217 (69.6%)
Recovered with Sequela
48 (15.4%)
Ongoing
23 (7.4%)
Recovered/Normal
12 (3.8%)
Died
11 (3.5%)
Euthanized
1 (0.3%)
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.