Drug profile

The FDA adverse-event record for Herbs

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

33
adverse-event reports
24.2%
death-coded share
Dog
most-reported species
8
Lethargy (see also Central nervous system depression in 'Neurological') - 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.
33
Total Reports
8
Deaths Reported
24.2%
Death Rate

Active Ingredients

Herbs

Administration Routes

UnknownOral

Species Affected

Dog 27
Cat 6

Most Affected Breeds

Retriever - Labrador 6
Domestic Shorthair 3
Boxer (German Boxer) 2
Retriever - Golden 2
Terrier - Bull - American Pit 2
Mixed (Dog) 1
Chihuahua 1
Retriever - Flat-coated 1
Domestic Longhair 1
Dachshund - Standard Smooth-haired 1

Most Reported Reactions

Lethargy (see also Central nervous system depression in 'Neurological') 8
Anorexia 6
Seizure NOS 5
Death by euthanasia 5
Ataxia 4
Anaemia NOS 4
Lack of efficacy - NOS 4
Other abnormal test result NOS 4
Inappetence 3
Weakness 3
Hyperphosphataemia 3
Elevated creatinine 3

Outcome Breakdown

Ongoing
15 (45.5%)
Outcome Unknown
6 (18.2%)
Euthanized
5 (15.2%)
Recovered/Normal
4 (12.1%)
Died
3 (9.1%)

Herbs Adverse Event Insights

33 reports name Herbs; 8 recorded a death outcome (24.2% of reported events, not a population-level mortality rate). Active ingredient: Herbs. Administration routes: Unknown, Oral.

By species: Dog (27 reports), Cat (6 reports). By breed: Retriever - Labrador (6), Domestic Shorthair (3), Boxer (German Boxer) (2).

Leading clinical signs: Lethargy (see also Central nervous system depression in 'Neurological') (8), Anorexia (6), Seizure NOS (5), Death by euthanasia (5). Outcome, 33 coded reports: Ongoing leads at 45.5%.

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.