Drug profile

The FDA adverse-event record for Thyrotabs

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

28
adverse-event reports
10.7%
death-coded share
Dog
most-reported species
5
Lethargy (see also Central nervous system depression in Neurological) - top reaction
Verify with FDA CVM →
Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
28
Total Reports
3
Deaths Reported
10.7%
Death Rate

Active Ingredients

Thyrotabs

Administration Routes

OralUnknown

Species Affected

Dog 28

Most Affected Breeds

Retriever - Labrador 5
Retriever - Golden 4
Greyhound 3
Terrier - Bull - American Pit 2
Spaniel - King Charles Cavalier 1
Great Pyrenees 1
Spaniel - Springer (unspecified) 1
Chow Chow 1
Pinscher - Miniature 1
Shepherd Dog - Australian 1

Most Reported Reactions

Lethargy (see also Central nervous system depression in Neurological) 5
Diarrhoea 4
Not eating 4
Behavioural disorder NOS 4
Vomiting 3
Vestibular disorder NOS 3
Limb weakness 3
Elevated alanine aminotransferase (ALT) 2
Lack of efficacy - NOS 2
Anorexia 2
Urinary incontinence 2
Injection site swelling 2

Outcome Breakdown

Ongoing
16 (57.1%)
Recovered/Normal
7 (25.0%)
Outcome Unknown
2 (7.1%)
Euthanized
2 (7.1%)
Died
1 (3.6%)

Thyrotabs Adverse Event Insights

28 reports name Thyrotabs; 3 recorded a death outcome (10.7% of reported events, not a population-level mortality rate). Active ingredient: Thyrotabs. Administration routes: Oral, Unknown.

By species: Dog (28 reports). By breed: Retriever - Labrador (5), Retriever - Golden (4), Greyhound (3).

Leading clinical signs: Lethargy (see also Central nervous system depression in Neurological) (5), Diarrhoea (4), Not eating (4), Behavioural disorder NOS (4). Outcome, 28 coded reports: Ongoing leads at 57.1%.

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.