Drug profile

The FDA adverse-event record for Gamithromycin 15%

22 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Gamithromycin 15%. See the species affected, top reactions, and outcomes below.

22
adverse-event reports
31.8%
death-coded share
Cattle
most-reported species
8
Lack of efficacy (bacteria) - 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.
22
Total Reports
7
Deaths Reported
31.8%
Death Rate

Active Ingredients

Gamithromycin 15%

Administration Routes

SubcutaneousUnknownOral

Species Affected

Cattle 14
Unknown 5
Human 3

Most Affected Breeds

Cattle (unknown) 9
Unknown 8
Crossbred Bovine/Cattle 2
Mixed (Cattle) 1
Aberdeen Angus 1
Maine-Anjou 1

Most Reported Reactions

Lack of efficacy (bacteria) - NOS 8
Death 6
Lack of efficacy - NOS 6
Uncoded sign 5
Pneumonia 4
Fever 4
DEATH-TREATMENT FAILURE 4
Containers, Abnormal 4
Physical product label issues 3
Injection site swelling 3
Accidental exposure 3
Respiratory tract infection NOS 2

Outcome Breakdown

Died
7 (33.3%)
Outcome Unknown
7 (33.3%)
Recovered/Normal
3 (14.3%)
Ongoing
3 (14.3%)
Recovered with Sequela
1 (4.8%)

Gamithromycin 15% Adverse Event Insights

22 reports name Gamithromycin 15%; 7 recorded a death outcome (31.8% of reported events, not a population-level mortality rate). Active ingredient: Gamithromycin 15%. Administration routes: Subcutaneous, Unknown, Oral.

By species: Cattle (14 reports), Unknown (5 reports), Human (3 reports). By breed: Cattle (unknown) (9), Unknown (8), Crossbred Bovine/Cattle (2).

Leading clinical signs: Lack of efficacy (bacteria) - NOS (8), Death (6), Lack of efficacy - NOS (6), Uncoded sign (5). Outcome, 21 coded reports: Died leads at 33.3%.

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.