Drug profile

The FDA adverse-event record for Telazol

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

13
adverse-event reports
38.5%
death-coded share
Cat
most-reported species
5
Death - 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.
13
Total Reports
5
Deaths Reported
38.5%
Death Rate

Active Ingredients

Telazol

Administration Routes

UnknownIntramuscularIntravenous

Species Affected

Cat 8
Dog 5

Most Affected Breeds

Domestic Shorthair 5
Shepherd Dog - German 2
Schnauzer - Miniature 1
Russian 1
Dog (unknown) 1
Boxer (German Boxer) 1
Domestic Mediumhair 1
Sphynx 1

Most Reported Reactions

Death 5
Medication error NOS 4
Vocalisation 2
Diarrhoea 2
Increased respiratory rate 2
Nasal discharge 2
Elevated temperature 2
Open mouth breathing 2
Abnormal radiograph finding 2
Cyanosis 2
Injection site alopecia 1
Vasculitis 1

Outcome Breakdown

Died
4 (30.8%)
Recovered/Normal
3 (23.1%)
Outcome Unknown
2 (15.4%)
Ongoing
2 (15.4%)
Recovered with Sequela
1 (7.7%)
Euthanized
1 (7.7%)

Telazol Adverse Event Insights

13 reports name Telazol; 5 recorded a death outcome (38.5% of reported events, not a population-level mortality rate). Active ingredient: Telazol. Administration routes: Unknown, Intramuscular, Intravenous.

By species: Cat (8 reports), Dog (5 reports). By breed: Domestic Shorthair (5), Shepherd Dog - German (2), Schnauzer - Miniature (1).

Leading clinical signs: Death (5), Medication error NOS (4), Vocalisation (2), Diarrhoea (2). Outcome, 13 coded reports: Died leads at 30.8%.

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.