Drug profile

The FDA adverse-event record for Phenylpropanolamine Hcl

1,644 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Phenylpropanolamine Hcl. See the species affected, top reactions, and outcomes below.

1,644
adverse-event reports
5.4%
death-coded share
Dog
most-reported species
308
Emesis - 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.
1,644
Total Reports
89
Deaths Reported
5.4%
Death Rate

Active Ingredients

Phenylpropanolamine Hcl

Administration Routes

OralUnknown

Species Affected

Dog 1,402
Unknown 233
Human 7
Cat 2

Most Affected Breeds

Unknown 247
Retriever - Labrador 231
Crossbred Canine/dog 181
Shepherd Dog - German 76
Boxer (German Boxer) 59
Doberman Pinscher 33
Collie - Border 33
Beagle 32
Shepherd Dog - Australian 30
Weimaraner 30

Most Reported Reactions

Emesis 308
Lethargy (see also Central nervous system depression in 'Neurological') 249
Overdose 216
Accidental exposure 215
Underdose 163
Panting 155
Agitation 147
Vomiting 131
Lack of efficacy - NOS 120
Emesis (multiple) 114
Diarrhoea 107
Erythema (for urticaria see Immune SOC) 106

Outcome Breakdown

Recovered/Normal
801 (56.7%)
Outcome Unknown
393 (27.8%)
Ongoing
102 (7.2%)
Euthanized
51 (3.6%)
Died
38 (2.7%)
Recovered with Sequela
28 (2.0%)

Phenylpropanolamine Hcl Adverse Event Insights

1,644 reports name Phenylpropanolamine Hcl; 89 recorded a death outcome (5.4% of reported events, not a population-level mortality rate). Active ingredient: Phenylpropanolamine Hcl. Administration routes: Oral, Unknown.

By species: Dog (1,402 reports), Unknown (233 reports), Human (7 reports). By breed: Unknown (247), Retriever - Labrador (231), Crossbred Canine/dog (181).

Leading clinical signs: Emesis (308), Lethargy (see also Central nervous system depression in 'Neurological') (249), Overdose (216), Accidental exposure (215). Outcome, 1,413 coded reports: Recovered/Normal leads at 56.7%.

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.