Pet Recall Facts

Ingredients / Sulfadimethoxine

Sulfadimethoxine: FDA adverse event reports for pets

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

2,779Total reports
1,904Dog reports
362Cat 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

199010
199119
199220
19938
1994133
199588
1996110
199774
1998158
1999135
2000152
2001117
200266
200381
2004123
2005105
2006139
2007123
200883
200993
201092
201183
201289
201383
201464
201564
201670
201767
201833
201938
202051
202135
202224
202327
202441
202550
202631

Species named in reports

Dog1,904
Not given385
Cat362
Cattle64
Human24
Other10
Sheep7
Goat6

Signs reported after Sulfadimethoxine

Vomiting334
Lack of efficacy (protozoa) - Coccidia310
Depression273
Anorexia226
Death217
Diarrhoea209
Fever193
Ataxia163
Lethargy (see also Central nervous system depression in Neurological)140
Anaemia NOS129
Convulsion129
Thrombocytopenia116
Elevated alanine aminotransferase (ALT)106
Elevated serum alkaline phosphatase (SAP)106
Death by euthanasia98
No sign89
Behavioural disorder NOS75
Trembling74
Weakness73
Vials, Leaking73
Leucocytosis NOS71
Elevated total bilirubin69
Keratoconjunctivitis sicca66
Weight loss64
Accidental exposure63

Breeds named in reports

Retriever - Labrador247
Crossbred Canine/dog198
Domestic (unspecified)189
Retriever - Golden141
Dog (unknown)133
Poodle (unspecified)81
Shepherd Dog - German78
Domestic Shorthair58
Boxer (German Boxer)53
Terrier - Yorkshire48
Chihuahua48
Cat (unknown)47
Shih Tzu40
Bulldog38
Dachshund (unspecified)35

Reported outcomes

Died305
Ongoing264
Outcome Unknown172
Recovered/Normal167
Euthanized25
Recovered with Sequela8

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