Drug profile

The FDA adverse-event record for Pyrethrins, Piperonyl Butoxide, Pyrodone

11 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Pyrethrins, Piperonyl Butoxide, Pyrodone. See the species affected, top reactions, and outcomes below.

11
adverse-event reports
0.0%
death-coded share
Dog
most-reported species
10
Lack of efficacy (ectoparasite) - flea - 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.
11
Total Reports
0
Deaths Reported
0.0%
Death Rate

Active Ingredients

Pyrethrins, Piperonyl Butoxide, Pyrodone

Administration Routes

Topical

Species Affected

Dog 9
Cat 2

Most Affected Breeds

Dog (unknown) 3
Pug 1
Retriever - Golden 1
Cat (unknown) 1
Domestic Longhair 1
Hound - Basset 1
Terrier - Yorkshire 1
Terrier (unspecified) 1
Chihuahua 1

Most Reported Reactions

Lack of efficacy (ectoparasite) - flea 10
Itching 3
Product Defect, General 2
Vomiting 1
Behavioural disorder NOS 1
Scratching 1
Product defect, product difficult to use/handle (see also 'Drug device difficult to use/handle') 1
Defect Unknown/Not Specified 1

Outcome Breakdown

Outcome Unknown
8 (72.7%)
Ongoing
2 (18.2%)
Recovered/Normal
1 (9.1%)

Pyrethrins, Piperonyl Butoxide, Pyrodone Adverse Event Insights

11 reports name Pyrethrins, Piperonyl Butoxide, Pyrodone; 0 recorded a death outcome (0.0% of reported events, not a population-level mortality rate). Active ingredient: Pyrethrins, Piperonyl Butoxide, Pyrodone. Administration route: Topical.

By species: Dog (9 reports), Cat (2 reports). By breed: Dog (unknown) (3), Pug (1), Retriever - Golden (1).

Leading clinical signs: Lack of efficacy (ectoparasite) - flea (10), Itching (3), Product Defect, General (2), Vomiting (1). Outcome, 11 coded reports: Outcome Unknown leads at 72.7%.

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.