Reaction profile

The FDA adverse-event record for lot # and/or expiration date illegible

359 FDA adverse-event reports reference lot # and/or expiration date illegible (VeDDRA 99844). See the species, breeds, and drugs most associated with it below.

359
reports citing this reaction
2.5%
death-coded share
Unknown
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
Verify with FDA CVM →
359
Total Reports
9
Deaths
2.5%
Death Rate

Species Most Affected

Unknown 203
Dog 125
Cat 27
Human 2
Cattle 1
Goat 1

Breeds Most Affected

Unknown 205
Chihuahua 16
Domestic Shorthair 14
Retriever - Labrador 10
Terrier - Yorkshire 9
Crossbred Canine/dog 6
Shih Tzu 6
Dog (unknown) 6
Bichon Frise 6
Terrier - Rat 5

Associated Drugs

Milbemycin Oxime + Spinosad 97
Nitenpyram 63
Spinosad 47
Recombinant Human Insulin 11
Carprofen 8
Ivermectin, Pyrantel 8
Robenacoxib 8
Selamectin 8
Milbemycin Oxime + Praziquantel 8
Phenylpropanolamine Hcl 7
Rabies Vaccine 7
Levothyroxine Sodium 6
Furosemide Tablets 6
Ivermectin 6
Oclacitinib Maleate 5
Flea Spray (Unknown) 5
Cyclosporine 5
Ractopamine Hydrochloride 4
Afoxolaner 4
Flea Shampoo 4

Lot # and/or Expiration date illegible Reaction Insights

359 reports name Lot # and/or Expiration date illegible; 9 recorded a death outcome (2.5% of reported events, not a population-level mortality rate). VeDDRA code: 99844.

By species: Unknown (203 reports), Dog (125 reports), Cat (27 reports). By breed: Unknown (205), Chihuahua (16), Domestic Shorthair (14).

Most co-reported drugs: Milbemycin Oxime + Spinosad (97 reports), Nitenpyram (63 reports), Spinosad (47 reports), Recombinant Human Insulin (11 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.