Drug profile

The FDA adverse-event record for Ivermectin Chewable 55Mcg

Name: Ivermectin Chewable 55Mcg - FDA Animal Adverse Event Reports
Creator: PlainBreed
License: https://creativecommons.org/publicdomain/zero/1.0/

26 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Ivermectin Chewable 55Mcg. See the species affected, top reactions, and outcomes below.

26
adverse-event reports: 0.0%
death-coded share: Unknown
most-reported species: 8
Uncoded sign - top reaction

Compiled by PlainBreed Editorial, Pet Health Editorial Team

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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.

Total Reports

Deaths Reported

0.0%

Death Rate

Active Ingredients

Ivermectin Chewable 55Mcg

Administration Routes

UnknownOral

Species Affected

Unknown 15

Cat 10

Dog 1

Most Affected Breeds

Unknown 15

Domestic Shorthair 6

Cat (unknown) 3

Pekingese 1

Domestic Mediumhair 1

Most Reported Reactions

Uncoded sign 8

Tablets, Abnormal 7

Vomiting 6

Containers, Damaged 4

Diarrhoea 2

Lethargy (see also Central nervous system depression in 'Neurological') 2

Cough 2

Application site alopecia 1

Anorexia 1

Decreased appetite 1

Fever 1

Head tilt - ear disorder 1

Outcome Breakdown

Recovered/Normal

6 (54.5%)

Outcome Unknown

3 (27.3%)

Ongoing

2 (18.2%)

Ivermectin Chewable 55Mcg Adverse Event Insights

26 reports name Ivermectin Chewable 55Mcg; 0 recorded a death outcome (0.0% of reported events, not a population-level mortality rate). Active ingredient: Ivermectin Chewable 55Mcg. Administration routes: Unknown, Oral.

By species: Unknown (15 reports), Cat (10 reports), Dog (1 reports). By breed: Unknown (15), Domestic Shorthair (6), Cat (unknown) (3).

Leading clinical signs: Uncoded sign (8), Tablets, Abnormal (7), Vomiting (6), Containers, Damaged (4). Outcome, 11 coded reports: Recovered/Normal leads at 54.5%.

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.