Drug profile

The FDA adverse-event record for Avilamycin

57 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Avilamycin. See the species affected, top reactions, and outcomes below.

57
adverse-event reports
84.2%
death-coded share
Chicken
most-reported species
35
Lack of efficacy - 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.
57
Total Reports
48
Deaths Reported
84.2%
Death Rate

Active Ingredients

Avilamycin

Administration Routes

OralUnknownCutaneous

Species Affected

Chicken 33
Pig 18
Human 2
Unknown 2
Cattle 2

Most Affected Breeds

Chicken (unknown) 31
Pig (unknown) 14
Unknown 4
Crossbred Porcine/Pig 3
Chicken (other) 2
Crossbred Bovine/Cattle 2
Commercial hybrid 1

Most Reported Reactions

Lack of efficacy - NOS 35
Death 30
Increased mortality rate 12
Death by euthanasia 6
Diarrhoea 5
Enteritis 4
Lack of efficacy (bacteria) - NOS 3
Found dead 3
Lameness 3
Respiratory tract disorder NOS 3
NT - Abnormal necropsy finding NOS 3
Digestive tract disorder NOS 2

Outcome Breakdown

Died
46 (59.7%)
Outcome Unknown
21 (27.3%)
Euthanized
5 (6.5%)
Recovered/Normal
4 (5.2%)
Ongoing
1 (1.3%)

Avilamycin Adverse Event Insights

57 reports name Avilamycin; 48 recorded a death outcome (84.2% of reported events, not a population-level mortality rate). Active ingredient: Avilamycin. Administration routes: Oral, Unknown, Cutaneous.

By species: Chicken (33 reports), Pig (18 reports), Human (2 reports). By breed: Chicken (unknown) (31), Pig (unknown) (14), Unknown (4).

Leading clinical signs: Lack of efficacy - NOS (35), Death (30), Increased mortality rate (12), Death by euthanasia (6). Outcome, 77 coded reports: Died leads at 59.7%.

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.