Drug profile

The FDA adverse-event record for Hydrolyzed Protein Diet

152 FDA reports name Hydrolyzed Protein Diet, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#625 of 2,679
by report volume (all drugs)
152
adverse-event reports
7.9%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Hydrolyzed Protein Diet ranks #625 of 2679 by total reports (152) and #644 of 1130 by death-coded share (7.9%). National dual: Milbemycin Oxime + Spinosad is #1 of 2679 drugs by total adverse-event reports (149,624) at death-coded-share rank 965 of 1130 drugs with at least 50 reports (2.3%); separately, Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) is #1 highest death-coded share at 97.8% (report rank #821).

149,624
Milbemycin Oxime + Spinosad reports (#1)
97.8%
Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) death share (#1)
#625
This drug, reports of 2679
#644
This drug, death share of 1130

Report volume reflects how common a breed or drug is and how often owners and vets file — not actual risk. Death-coded share ranks are limited to entries with enough reports to be meaningful. The two maps do not agree at #1.

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Hydrolyzed Protein Diet has 152 reports now versus 139 in that prior snapshot: 13 more (9.4%).

Report change
+13
Death-coded reports
+1
Death-coded share
−0.0 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Hydrolyzed Protein Diet changes

Signature read: 152 reports place Hydrolyzed Protein Diet in the upper third of FDA AER volume (#625 of 2,679).

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
152
Total Reports
12
Deaths Reported
7.9%
Death-coded share of reports

Active Ingredients

Hydrolyzed Protein Diet

Administration Routes

UnknownOral

Species Affected

Dog 108
Cat 44

Most Affected Breeds

Domestic Shorthair 30
Retriever - Golden 9
Retriever - Labrador 8
Bulldog - French 8
Terrier - Yorkshire 7
Domestic Longhair 6
Bulldog - English 6
Shepherd Dog - German 6
Terrier - Bull - American Pit 5
Crossbred Canine/dog 4

Most Reported Reactions

Diarrhoea 42
Lethargy (see also Central nervous system depression in Neurological) 37
Weight loss 25
Vomiting 25
Lack of efficacy - NOS 23
Not eating 22
Elevated alanine aminotransferase (ALT) 17
Elevated serum alkaline phosphatase (ALP) 16
Lymphopenia 13
Decreased appetite 13
Neutropenia 13
Emesis (multiple) 12

Outcome Breakdown

Ongoing
82 (53.9%)
Outcome Unknown
44 (28.9%)
Recovered/Normal
14 (9.2%)
Euthanized
10 (6.6%)
Died
2 (1.3%)

Hydrolyzed Protein Diet: high report volume in the FDA AER row

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.

High-volume nationwide drug peers

Two openFDA-derived peer sets for Hydrolyzed Protein Diet, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

What to do with this drug

  • Compare Hydrolyzed Protein Diet's report volume and death-coded share against similar drugs nationwide. See similar drugs
  • Read how death-coded share differs from a mortality rate before drawing conclusions. Understanding adverse events
  • Browse the full drug directory to compare report counts across products. All drugs

A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Hydrolyzed Protein Diet (#625 of 2,679 by report volume); death-coded 7.9%. PlainBreed drug row · report volume stamp 152 · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →