Benadryl
246 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.
246
Total Reports
35
Deaths Reported
1420.0%
Death Rate
Active Ingredients
Benadryl
Administration Routes
UnknownOralIntramuscularSubcutaneousIntravenous
Species Affected
Dog 223
Cat 23
Most Affected Breeds
Retriever - Labrador 19
Domestic Shorthair 16
Crossbred Canine/dog 12
Boxer (German Boxer) 12
Chihuahua 11
Shepherd Dog - German 11
Terrier - Bull - American Pit 10
Terrier - Boston 10
Shih Tzu 8
Dachshund (unspecified) 7
Most Reported Reactions
Vomiting 49
Lethargy (see also Central nervous system depression in Neurological) 35
Diarrhoea 34
Not eating 31
Facial swelling (see also Skin) 22
Lethargy (see also Central nervous system depression in 'Neurological') 21
Hives (see also Skin) 21
Death 20
Emesis (multiple) 19
Panting 19
Seizure NOS 19
Itching 18
Outcome Breakdown
Ongoing
145 (58.9%)
Recovered/Normal
38 (15.4%)
Outcome Unknown
28 (11.4%)
Died
21 (8.5%)
Euthanized
14 (5.7%)
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.