Levothyroxine Sodium Tablets

13 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

1540.0%

Death Rate

Active Ingredients

Levothyroxine Sodium Tablets

Administration Routes

Oral

Species Affected

Dog 12

Cat 1

Most Affected Breeds

Rottweiler 2

Beagle 1

Mastiff 1

Retriever - Labrador 1

Chihuahua 1

Poodle - Toy 1

Shepherd Dog - Belgian Malinois 1

Poodle - Miniature 1

Domestic Shorthair 1

Siberian Husky 1

Most Reported Reactions

Emesis 3

Lack of efficacy - NOS 3

Vomiting 2

Lethargy (see also Central nervous system depression in 'Neurological') 2

Death by euthanasia 2

Behavioural disorder NOS 2

Lethargy (see also Central nervous system depression in Neurological) 2

Hair coat discolouration 1

Hyperthyroidism 1

Hyperglycaemia 1

Unresponsive to stimuli 1

Application site itching 1

Outcome Breakdown

Recovered/Normal

6 (46.2%)

Outcome Unknown

4 (30.8%)

Euthanized

2 (15.4%)

Ongoing

1 (7.7%)

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