Pet Recall Facts

Ingredients / Imidacloprid

Imidacloprid: FDA adverse event reports for pets

Reports received through June 26, 2026. Data and limitations.

28,638Total reports
17,414Dog reports
8,950Cat reports

FDA-approved products with this ingredient (Green Book)

All approved products with this ingredient, for any species.

FDA and EPA products. Some products with this ingredient are FDA-approved animal drugs (listed above); others, such as many collars, spot-ons and shampoos, are EPA-registered pesticides with no Green Book record. The reports counted here can involve either kind.

Brand names come only from the Green Book. Brand names in FDA's public report data are masked, so counts cannot be attributed to any brand. Ingredient names in the reports are written many ways; we group them under one ingredient name and count each report once per ingredient (method).

Reports by year received

20063
2007437
2008632
20091,071
20101,365
20111,553
20121,910
20131,940
20141,769
20151,664
20161,641
20172,184
20182,058
20192,046
20201,845
20211,580
20221,291
20231,265
20241,196
2025838
2026350

Species named in reports

Dog17,414
Cat8,950
Not given1,634
Human557
Rabbit39
Ferret21
Cockatiel7
Other3

Signs reported after Imidacloprid

Lack of efficacy (ectoparasite) - flea4,302
Lethargy (see also Central nervous system depression in Neurological)3,233
Pruritus3,027
Vomiting2,638
Behavioural disorder NOS2,415
Hypersalivation1,754
Anorexia1,563
Diarrhoea1,515
Application site alopecia1,307
Ataxia1,250
Other abnormal test result NOS1,192
Lack of efficacy (endoparasite) - heartworm1,075
Hyperactivity905
Underfilling, Tubes847
Accidental exposure844
INEFFECTIVE, HEARTWORM LARVAE821
Application site pruritus792
Depression775
Seizure NOS736
Agitation668
Death655
Application site erythema647
Weight loss584
Vocalisation582
Emesis (multiple)518

Breeds named in reports

Domestic Shorthair4,387
Dog (unknown)1,868
Retriever - Labrador1,664
Crossbred Canine/dog1,447
Domestic (unspecified)1,257
Cat (unknown)1,236
Chihuahua1,102
Terrier - Yorkshire913
Shih Tzu773
Domestic Longhair711
Shepherd Dog - German675
Pit Bull653
Retriever - Golden539
Maltese487
Domestic Mediumhair443

Reported outcomes

Outcome Unknown12,723
Recovered/Normal8,014
Ongoing1,931
Died737
Euthanized404
Recovered with Sequela69

Report a problem to FDA