Reaction profile

The FDA adverse-event record for pseudopregnancy

30 FDA adverse-event reports reference pseudopregnancy (VeDDRA 766). See the species, breeds, and drugs most associated with it below.

30
reports citing this reaction
13.3%
death-coded share
Dog
most-affected species
Unspecified
most-associated drug
Verify with FDA CVM →
30
Total Reports
4
Deaths
13.3%
Death Rate

Species Most Affected

Dog 30

Breeds Most Affected

Pit Bull 3
Beagle 3
Shepherd Dog - German 2
Dachshund - Miniature 2
Dog (unknown) 2
Terrier - Welsh 1
Terrier - Airedale 1
Retriever - Golden 1
Retriever - Labrador 1
Collie (unspecified) 1

Associated Drugs

Unspecified 17
Milbemycin Oxime + Spinosad 6
Fluralaner 13.64% 12-Week Chew 5
Oclacitinib Maleate 4
Spinosad 3
Milbemycin Oxime 2
Afoxolaner 2
Milbemycin Oxime + Praziquantel 2
Prednisone 2
Propofol 2
Amoxicillin Trihydrate;Clavulanate Potassium ( K-Clavulanate) 2
Meloxicam 2
Imidacloprid + Moxidectin 1
Bordetella Vaccine 1
Steroid (Unknown) 1
Distemper Vaccine 1
Genta/Momet/Clotrim Ear Oint 1
Fluralaner Chew Tablets 1
Desoxycortone 1
Fluralaner 5.46% 1-Month Chew 1

Pseudopregnancy Reaction Insights

30 reports name Pseudopregnancy; 4 recorded a death outcome (13.3% of reported events, not a population-level mortality rate). VeDDRA code: 766.

By species: Dog (30 reports). By breed: Pit Bull (3), Beagle (3), Shepherd Dog - German (2).

Most co-reported drugs: Unspecified (17 reports), Milbemycin Oxime + Spinosad (6 reports), Fluralaner 13.64% 12-Week Chew (5 reports), Oclacitinib Maleate (4 reports).

Read these counts as reporting volume, not risk: per our methodology, co-reporting reflects temporal association captured in voluntary submissions, not proof that a drug caused this reaction. A widely-prescribed drug will rack up more raw co-reports at an identical true rate than a rarely-used one, so compare within similar-exposure products.

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.