Drug profile

The FDA adverse-event record for Portech App Gun 65 Ml Ivomec/Eprinex

285 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Portech App Gun 65 Ml Ivomec/Eprinex. See the species affected, top reactions, and outcomes below.

285
adverse-event reports
1.4%
death-coded share
Cattle
most-reported species
192
Systemic disorder NOS - 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.
285
Total Reports
4
Deaths Reported
1.4%
Death Rate

Active Ingredients

Portech App Gun 65 Ml Ivomec/Eprinex

Administration Routes

OtherUnknownUnassignedOralTopical

Species Affected

Cattle 274
Unknown 10
Human 1

Most Affected Breeds

Aberdeen Angus 138
Crossbred Bovine/Cattle 41
Cattle (unknown) 39
Cattle (other) 23
Holstein-Friesian also known as Holstein 20
Unknown 11
Simmental 4
Charolais 4
Hereford cattle 2
Chianina 1

Most Reported Reactions

Systemic disorder NOS 192
Lack of efficacy (ectoparasite) - lice 166
Hair loss NOS 99
Scratching 78
Rubbing 57
INEFFECTIVE, LICE BITING 41
Generalised itching 41
Lack of efficacy (ectoparasite) - NOS 38
Itching 35
Pruritus 35
SKIN SCRAPING ABNORMAL 32
General hair loss 30

Outcome Breakdown

Outcome Unknown
243 (87.7%)
Ongoing
26 (9.4%)
Recovered/Normal
4 (1.4%)
Died
4 (1.4%)

Portech App Gun 65 Ml Ivomec/Eprinex Adverse Event Insights

285 reports name Portech App Gun 65 Ml Ivomec/Eprinex; 4 recorded a death outcome (1.4% of reported events, not a population-level mortality rate). Active ingredient: Portech App Gun 65 Ml Ivomec/Eprinex. Administration routes: Other, Unknown, Unassigned, Oral.

By species: Cattle (274 reports), Unknown (10 reports), Human (1 reports). By breed: Aberdeen Angus (138), Crossbred Bovine/Cattle (41), Cattle (unknown) (39).

Leading clinical signs: Systemic disorder NOS (192), Lack of efficacy (ectoparasite) - lice (166), Hair loss NOS (99), Scratching (78). Outcome, 277 coded reports: Outcome Unknown leads at 87.7%.

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.