Drug profile

The FDA adverse-event record for Dried Hydrolyzed Casein

16 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Dried Hydrolyzed Casein. See the species affected, top reactions, and outcomes below.

16
adverse-event reports
12.5%
death-coded share
Dog
most-reported species
4
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.
16
Total Reports
2
Deaths Reported
12.5%
Death Rate

Active Ingredients

Dried Hydrolyzed Casein

Administration Routes

OralUnknown

Species Affected

Dog 12
Cat 4

Most Affected Breeds

Domestic Shorthair 2
Terrier (unspecified) 2
Domestic Longhair 2
Greyhound 2
Beagle 1
Shepherd Dog - German 1
Schnauzer - Miniature 1
Poodle - Standard 1
Terrier - Yorkshire 1
Terrier - Boston 1

Most Reported Reactions

Vomiting 4
Lethargy (see also Central nervous system depression in 'Neurological') 4
Other abnormal test result NOS 4
Elevated alanine aminotransferase (ALT) 3
Anxiety 3
Lack of efficacy - NOS 3
Weight loss 2
Hyperkalaemia 2
Elevated serum alkaline phosphatase (SAP) 2
Elevated total bilirubin 2
Abnormal ultrasound finding 2
Seizure NOS 2

Outcome Breakdown

Ongoing
6 (37.5%)
Outcome Unknown
5 (31.3%)
Recovered/Normal
3 (18.8%)
Died
1 (6.3%)
Euthanized
1 (6.3%)

Dried Hydrolyzed Casein Adverse Event Insights

16 reports name Dried Hydrolyzed Casein; 2 recorded a death outcome (12.5% of reported events, not a population-level mortality rate). Active ingredient: Dried Hydrolyzed Casein. Administration routes: Oral, Unknown.

By species: Dog (12 reports), Cat (4 reports). By breed: Domestic Shorthair (2), Terrier (unspecified) (2), Domestic Longhair (2).

Leading clinical signs: Vomiting (4), Lethargy (see also Central nervous system depression in 'Neurological') (4), Other abnormal test result NOS (4), Elevated alanine aminotransferase (ALT) (3). Outcome, 16 coded reports: Ongoing leads at 37.5%.

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.