Drug profile

The FDA adverse-event record for Terbinafine Hcl

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

58
adverse-event reports
10.3%
death-coded share
Dog
most-reported species
11
Vomiting - 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.
58
Total Reports
6
Deaths Reported
10.3%
Death Rate

Active Ingredients

Terbinafine Hcl

Administration Routes

UnknownOral

Species Affected

Dog 53
Cat 5

Most Affected Breeds

Shih Tzu 7
Retriever - Labrador 4
Chihuahua 4
Domestic Shorthair 4
Terrier - Yorkshire 3
Dachshund (unspecified) 3
Terrier - Bull - American Pit 3
Crossbred Canine/dog 2
Terrier - West Highland White 2
Spaniel - Cocker American 2

Most Reported Reactions

Vomiting 11
Lethargy (see also Central nervous system depression in 'Neurological') 10
Diarrhoea 8
Seizure NOS 6
Lack of efficacy - NOS 5
Fungal skin infection NOS 5
Pruritus 5
Other abnormal test result NOS 4
Otitis NOS 4
PR-SKIN, LESION(S) 4
Skin lesion NOS 4
Elevated serum alkaline phosphatase (SAP) 4

Outcome Breakdown

Ongoing
39 (67.2%)
Recovered/Normal
10 (17.2%)
Died
3 (5.2%)
Euthanized
3 (5.2%)
Outcome Unknown
3 (5.2%)

Terbinafine Hcl Adverse Event Insights

58 reports name Terbinafine Hcl; 6 recorded a death outcome (10.3% of reported events, not a population-level mortality rate). Active ingredient: Terbinafine Hcl. Administration routes: Unknown, Oral.

By species: Dog (53 reports), Cat (5 reports). By breed: Shih Tzu (7), Retriever - Labrador (4), Chihuahua (4).

Leading clinical signs: Vomiting (11), Lethargy (see also Central nervous system depression in 'Neurological') (10), Diarrhoea (8), Seizure NOS (6). Outcome, 58 coded reports: Ongoing leads at 67.2%.

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.