Drug profile

The FDA adverse-event record for Phenylpropropanolamine Hcl

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

956
adverse-event reports
5.2%
death-coded share
Dog
most-reported species
135
Vomiting - 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.
956
Total Reports
50
Deaths Reported
5.2%
Death Rate

Active Ingredients

Phenylpropropanolamine Hcl

Administration Routes

OralUnknownTopical

Species Affected

Dog 753
Unknown 195
Human 4
Cat 2
Horse 1
Other 1

Most Affected Breeds

Unknown 201
Retriever - Labrador 131
Shepherd Dog - German 52
Crossbred Canine/dog 40
Boxer (German Boxer) 35
Pit Bull 32
Dog (unknown) 30
Doberman Pinscher 24
Siberian Husky 23
Retriever - Golden 17

Most Reported Reactions

Vomiting 135
Overdose 133
Underdose 131
Tablets, Abnormal 129
Lack of efficacy - NOS 121
Panting 94
Emesis (multiple) 77
Lethargy (see also Central nervous system depression in 'Neurological') 68
Accidental exposure 53
Agitation 53
INEFFECTIVE, OTHER DRUG(S) 51
Behavioural disorder NOS 47

Outcome Breakdown

Recovered/Normal
312 (41.0%)
Outcome Unknown
310 (40.7%)
Ongoing
76 (10.0%)
Euthanized
28 (3.7%)
Died
22 (2.9%)
Recovered with Sequela
13 (1.7%)

Phenylpropropanolamine Hcl Adverse Event Insights

956 reports name Phenylpropropanolamine Hcl; 50 recorded a death outcome (5.2% of reported events, not a population-level mortality rate). Active ingredient: Phenylpropropanolamine Hcl. Administration routes: Oral, Unknown, Topical.

By species: Dog (753 reports), Unknown (195 reports), Human (4 reports). By breed: Unknown (201), Retriever - Labrador (131), Shepherd Dog - German (52).

Leading clinical signs: Vomiting (135), Overdose (133), Underdose (131), Tablets, Abnormal (129). Outcome, 761 coded reports: Recovered/Normal leads at 41.0%.

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.