Drug profile

The FDA adverse-event record for Probiotic

663 FDA reports name Probiotic, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#248 of 2,679
by report volume (all drugs)
663
adverse-event reports
14.9%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Probiotic ranks #248 of 2679 by total reports (663) and #365 of 1130 by death-coded share (14.9%). 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)
#248
This drug, reports of 2679
#365
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. Probiotic has 663 reports now versus 634 in that prior snapshot: 29 more (4.6%).

Report change
+29
Death-coded reports
+4
Death-coded share
−0.1 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 Probiotic changes

Signature read: death-coded report count at 99 is the most distinctive stamp on Probiotic's FDA AER row.

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
663
Total Reports
99
Deaths Reported
14.9%
Death-coded share of reports

Active Ingredients

Probiotic

Administration Routes

OralUnknownTopicalIntramuscularOther

Species Affected

Dog 546
Cat 108
Horse 6
Cattle 2
Human 1

Most Affected Breeds

Domestic Shorthair 70
Retriever - Labrador 62
Retriever - Golden 30
Crossbred Canine/dog 30
Shepherd Dog - German 25
Terrier - Yorkshire 23
Chihuahua 18
Shih Tzu 15
Boxer (German Boxer) 14
Domestic Longhair 12

Most Reported Reactions

Diarrhoea 192
Vomiting 154
Lethargy (see also Central nervous system depression in 'Neurological') 83
Anorexia 71
Lethargy (see also Central nervous system depression in Neurological) 69
Weight loss 67
Death by euthanasia 63
Lack of efficacy - NOS 59
Other abnormal test result NOS 57
Not eating 57
Decreased appetite 52
Elevated alanine aminotransferase (ALT) 47

Outcome Breakdown

Ongoing
275 (41.5%)
Outcome Unknown
145 (21.9%)
Recovered/Normal
142 (21.4%)
Euthanized
62 (9.4%)
Died
37 (5.6%)
Recovered with Sequela
2 (0.3%)

Probiotic: 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 Probiotic, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar report volume

Nearest other drugs by FDA report count (663 here).

Similar death-coded share

Nearest other drugs by death-coded share (14.9% here), distinct from the volume row.

What to do with this drug

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 Probiotic (#248 of 2,679 by report volume); death-coded 14.9%. PlainBreed drug row · death-coded report count stamp 99 · 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 →