Pet Recall Facts

Ingredients / Polymyxin B

Polymyxin B: FDA adverse event reports for pets

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

1,443Total reports
1,016Dog reports
193Cat reports

FDA-approved products with this ingredient (Green Book)

All approved products with this ingredient, for any species.

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

19953
19961
19971
199814
19994
200016
200116
20029
20035
200414
20053
200611
200712
200813
200913
20108
201133
201220
201324
201469
2015149
2016121
201789
201891
201981
2020151
202185
202285
2023100
2024104
202569
202629

Species named in reports

Dog1,016
Not given206
Cat193
Human17
Other3
Horse3
Rabbit3
Rat1

Signs reported after Polymyxin B

Loss of hearing253
Deafness231
Lack of efficacy - NOS130
Impaired hearing94
Hearing decreased86
Vomiting81
Color, Abnormal63
Behavioural disorder NOS61
Lethargy (see also Central nervous system depression in Neurological)58
Diarrhoea48
Partial deafness45
Ear discharge42
Ear infection NOS41
Deafness NOS32
Drug administration duration too long29
Lack of efficacy (bacteria) - NOS25
Vocalisation25
Other ear disorder NOS25
Eyelid oedema24
Conjunctivitis23
Head shake - ear disorder23
Emesis23
Other abnormal test result NOS23
Ocular discharge22
Otitis externa22

Breeds named in reports

Dog (unknown)139
Retriever - Labrador100
Crossbred Canine/dog71
Domestic Shorthair61
Terrier - Yorkshire60
Chihuahua59
Domestic (unspecified)56
Maltese42
Shih Tzu42
Retriever - Golden37
Pug34
Poodle (unspecified)34
Shepherd Dog - German32
Pit Bull32
Boxer (German Boxer)31

Reported outcomes

Ongoing401
Outcome Unknown385
Recovered/Normal205
Recovered with Sequela113
Died13
Euthanized13

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