Dewormer (Unknown)
570 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.
570
Total Reports
25
Deaths Reported
440.0%
Death Rate
Active Ingredients
Dewormer (Unknown)
Administration Routes
OralUnknownParenteralTopicalIntraocular
Species Affected
Dog 467
Cat 88
Cattle 12
Goat 2
Chicken 1
Most Affected Breeds
Domestic Shorthair 59
Retriever - Labrador 59
Pit Bull 25
Chihuahua 25
Crossbred Canine/dog 25
Boxer (German Boxer) 17
Terrier - Yorkshire 17
Retriever - Golden 17
Shepherd Dog - German 16
Beagle 14
Most Reported Reactions
Emesis 163
Vomiting 131
Lethargy (see also Central nervous system depression in 'Neurological') 90
Diarrhoea 61
Lack of efficacy (ectoparasite) - flea 42
Lack of efficacy - NOS 30
Lack of efficacy (endoparasite) - hookworm 29
Emesis (multiple) 24
Behavioural disorder NOS 20
Decreased appetite 19
Not eating 19
Loose stool 17
Outcome Breakdown
Recovered/Normal
291 (50.7%)
Outcome Unknown
163 (28.4%)
Ongoing
71 (12.4%)
Recovered with Sequela
24 (4.2%)
Died
17 (3.0%)
Euthanized
8 (1.4%)
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.