Amlodipine

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582 adverse event reports submitted to the FDA

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
582
Total Reports
79
Deaths Reported
1360.0%
Death Rate

Active Ingredients

Amlodipine

Administration Routes

OralUnknownTopicalTransdermalSubcutaneous

Species Affected

Dog 277
Cat 273
Human 32

Most Affected Breeds

Domestic Shorthair 172
Unknown 33
Terrier - Yorkshire 21
Domestic Longhair 18
Cat (unknown) 17
Retriever - Labrador 16
Siamese 15
Maltese 14
Beagle 13
Shih Tzu 12

Most Reported Reactions

Vomiting 77
Diarrhoea 71
Weight loss 63
Death by euthanasia 56
Lethargy (see also Central nervous system depression in Neurological) 55
Decreased appetite 50
Lethargy (see also Central nervous system depression in 'Neurological') 48
Elevated blood urea nitrogen (BUN) 47
Not eating 42
Lack of efficacy - NOS 41
Anorexia 38
Elevated creatinine 37

Outcome Breakdown

Ongoing
204 (35.1%)
Outcome Unknown
168 (28.9%)
Recovered/Normal
126 (21.6%)
Euthanized
54 (9.3%)
Died
25 (4.3%)
Recovered with Sequela
5 (0.9%)

Data Summary

Metric Value
Total adverse event reports 582
Reports involving death 79
Case-fatality rate (reported events) 1360.0%
Distinct species in reports 3
Distinct breeds in reports 20
Distinct reactions reported 20
Active ingredients on file 1

Source: FDA Center for Veterinary Medicine — Adverse Event Reporting (CVM AER). Counts reflect voluntary reports only.

Amlodipine Adverse Event Insights

The FDA Center for Veterinary Medicine database currently holds 582 adverse event reports referencing Amlodipine, including 79 reports in which the animal died — a 1360.0% case-fatality figure among reported events only, not a population-level mortality rate. Active ingredient on file: Amlodipine. Reported administration routes include Oral, Unknown, Topical, Transdermal. These numbers reflect voluntary submissions from pet owners, veterinarians, and manufacturers and therefore under-represent mild events and over-represent severe ones — a pattern the FDA has documented repeatedly for pharmacovigilance datasets.

The species most frequently named in Amlodipine reports are Dog (277 reports), Cat (273 reports), Human (32 reports), with Dog accounting for the largest share. Within those species, Domestic Shorthair (172), Unknown (33), Terrier - Yorkshire (21) appear most often — though breed popularity and ownership density shape these counts as much as any drug-specific sensitivity. This distribution matters because the same active ingredient can behave very differently across body sizes, ages, and species physiology.

The most commonly reported clinical signs associated with Amlodipine are Vomiting (77), Diarrhoea (71), Weight loss (63), Death by euthanasia (56). Of the 582 reports with a coded outcome, Ongoing is the leading category at 35.1%. Because FDA adverse event data describes correlation rather than causation, these figures are best used to frame informed questions with a veterinarian and to compare reporting patterns across related products — not as a standalone safety verdict on Amlodipine.

Source: FDA Center for Veterinary Medicine — Adverse Event Reports FDA Center for Veterinary Medicine — Adverse Event Reports Data reflects voluntary submissions and may not represent actual incidence rates

Related

Data sourced from official AKC, AVMA, ACVO, and breed-club veterinary references. See our methodology for details. Retrieved and formatted by PlainBreed Editorial