Pet Recall Facts

Ingredients / Alfaxalone

Alfaxalone: FDA adverse event reports for pets

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

1,024Total reports
493Dog reports
470Cat 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

20131
20143
201513
201612
201734
201844
201967
202082
202181
202297
2023145
2024220
2025156
202669

Species named in reports

Dog493
Cat470
Rabbit22
Not given14
Guinea Pig4
Human4
Other Reptiles2
Mouse2

Signs reported after Alfaxalone

Death142
Not eating79
Lethargy (see also Central nervous system depression in Neurological)78
Cardiac arrest77
Bradycardia76
Lack of efficacy - NOS69
Vomiting66
Diarrhoea59
Seizure NOS52
Tachycardia52
Hypotension50
Apnoea49
Vocalisation49
Twitching47
Cyanosis46
Behavioural disorder NOS43
Paddling42
Death by euthanasia41
Decreased appetite40
Recovery prolonged38
Anorexia36
Hypothermia36
Intentional misuse36
Ataxia34
Excitation32

Breeds named in reports

Domestic Shorthair234
Dog (unknown)55
Retriever - Labrador45
Domestic Longhair45
Chihuahua38
Domestic Mediumhair26
Cat (unknown)24
Cat (other)23
Crossbred Canine/dog22
Shih Tzu22
Poodle (unspecified)21
Terrier (unspecified)19
Dachshund (unspecified)16
Terrier - Yorkshire15
Siamese14

Reported outcomes

Recovered/Normal472
Ongoing217
Died154
Outcome Unknown134
Euthanized42
Recovered with Sequela7

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