Doxycyline

31 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.

Total Reports

Deaths Reported

1610.0%

Death Rate

Active Ingredients

Doxycyline

Administration Routes

OralUnknown

Species Affected

Dog 29

Cat 1

Horse 1

Most Affected Breeds

Retriever - Labrador 5

Crossbred Canine/dog 2

Cattle Dog - Australian (blue heeler, red heeler, Queensland cattledog) 2

Poodle - Standard 2

Terrier - Bull - Staffordshire 2

Pointing Dog - Hungarian Short-haired (Vizsla) 2

Collie - Border 1

Shepherd Dog - Australian 1

Domestic Longhair 1

Deutsche Dogge, Great Dane 1

Most Reported Reactions

Vomiting 6

Lack of efficacy (endoparasite) - heartworm 6

Ataxia 5

Death by euthanasia 4

Diarrhoea 4

Elevated alanine aminotransferase (ALT) 4

Not eating 4

Decreased appetite 3

Abnormal pupil light reflex 3

Weight loss 3

Lack of efficacy (endoparasite) - hookworm 3

Lack of efficacy (bacteria) - Borrelia 3

Outcome Breakdown

Outcome Unknown

15 (48.4%)

Recovered/Normal

6 (19.4%)

Ongoing

5 (16.1%)

Euthanized

3 (9.7%)

Died

2 (6.5%)

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