Can I Take My Dog Off Thyroid Medication?

by | Last updated on January 24, 2024

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Animals do not need to be weaned off of T4 supplementation

. There is no apparent harm in abruptly stopping thyroid supplementation.

How long do dogs live with hypothyroidism?

Pets treated for canine have an excellent prognosis and their life expectancy is normal. Although it is not curable, it is a manageable disorder. Clinical abnormalities (flaky skin, hair loss, lethargy) may take

a few weeks to a few months

to resolve.

What happens if hypothyroidism is left untreated in dogs?

Untreated hypothyroidism can

shorten your dog's life span

, as nearly every organ in the body is affected by thyroid hormone and by the metabolism. Dogs with untreated hypothyroidism develop high cholesterol, decreased immune function, a slowed heart rate, and neuromuscular signs.

How long does levothyroxine stay in a dogs system?

The half-life of levothyroxine in dogs is

10 to 16 hours

.

Should dogs Take thyroid meds with food?

To minimize variation in absorption,

you should consistently give the drug to your dog either with or without food

. You will typically see improvement in your dog's activity level within a few weeks of starting thyroid hormone replacement therapy.

Will levothyroxine hurt my dog?

The hormone levothyroxine (a synthetic form) is the typical choice for treatment in canines and humans alike.

Overdose of this hormone can cause toxicity in your pet

. Vet bills can sneak up on you.

Can dog food cause thyroid problems?


Pet food and treats that contain livestock gullets (meat from the throat region of an animal) have the potential to contain thyroid tissue and thyroid hormones

. Pets that eat food or treats containing thyroid hormones may develop hyperthyroidism.

Is treating hypothyroidism in dogs expensive?

Veterinary Cost

The cost of diagnosis for hypothyroidism is relatively slight. Testing typically runs between $50 and $150.

Treatment is generally considered manageable as well

. Monthly expenses for medication tend to run in the $20 to $50 range.

What are early warning signs of thyroid problems?

  • Fatigue.
  • Weight gain.
  • Weight loss.
  • Slowed heart rate.
  • Increased heart rate.
  • Sensitivity to heat.
  • Sensitivity to cold.

Is hypothyroidism life threatening in dogs?

Hypothyroidism is easily treatable and

not life-threatening as long as it's taken care of

. But if left untreated, the disease will negatively affect your dog's quality of life. The clinical way to treat hypothyroidism is with synthetic thyroid replacement medication to offset low thyroid function.

What are the symptoms of low thyroid in dogs?

  • Unexplained weight gain.
  • Obesity.
  • Lack of energy, lethargy.
  • Mental dullness.
  • Cold intolerance.
  • Thinning coat.
  • Dull looking fur.
  • Dark pigmentation of the skin.

What do you feed a dog with low thyroid?

Sources such as

fish, poultry, and meat

are your best bets as they support lean muscle mass. Animal-based fats such as salmon oil and chicken fat will give him some much-needed energy. Essential fatty acids also address coat and skin issues your dog may have developed as a result of the hypothyroidism.

What are the long term side effects of hypothyroidism?

  • Goiter. Constant stimulation of your thyroid to release more hormones may cause the gland to become larger — a condition known as a goiter. …
  • Heart problems. …
  • Mental health issues. …
  • Peripheral neuropathy. …
  • Myxedema. …
  • Infertility. …
  • Birth defects.

Does low thyroid in dogs cause panting?


It can cause side effects such as hyperactivity, restlessness, a rapid heart rate, panting

, and, eventually, weight loss in spite of an increase in appetite.

How much levothyroxine should a dog take?

INDICATION: For replacement therapy for diminished thyroid function in dogs. DOSAGE AND ADMINISTRATION: The initial daily dose is

0.1 mg/10 pounds (0.01 mg/lb; 0.022 mg/kg) body weight as a single dose every 24 hours or as a divided dose every 12 hours

.

Can low thyroid in dogs cause anxiety?

As with humans,

hypothyroidism in dogs manifests as impaired mental function, so reasoning is replaced with panic

. The symptoms are most noticeable when the dog is stressed. Problems can begin very early, or may appear in adulthood. In adulthood, separation anxiety or noise phobias may suddenly appear.

Will one thyroid pill hurt my dog?

Dogs naturally have higher amounts of circulating thyroid hormone so thyroid medication is not toxic but

thyroid medication can potentially do a lot of harm

. Depending on the health and size of your pet and the amount of medication they ingested, thyroid medication could cause heart problems and death.

How much levothyroxine is toxic to dogs?

An overdose of

up to 850 levothyroxine sodium tablets (0.2 mg)

in a healthy 6-year-old 16.8-kg dog induced an episode of vomiting and hippus within 9 hours of ingestion.

Is thyroxine the same as levothyroxine?


Levothyroxine is a synthetic version of a hormone called thyroxine

. It replaces thyroxine if your thyroid gland cannot produce it and prevents the symptoms of hypothyroidism. Levothyroxine starts working straight away, but it may be several weeks before your symptoms start to improve.

Do dogs with thyroid problems drink a lot of water?


Dogs with hyperthyroidism are usually hungry or thirsty regardless of how much food or water they have consumed

. Because canine hyperthyroidism is often caused by thyroid carcinoma, early diagnosis and treatment is important for a good prognosis.

What dog breeds are prone to thyroid problems?

Breeds most commonly affected include the

Golden Retriever, Doberman Pinscher, Irish Setter, Miniature Schnauzer, Dachshund, Cocker Spaniel, and Airedale Terrier

. Hypothyroidism occurs equally in both males and females, but spayed females may have a higher risk than unspayed dogs.

How can I improve my dog's thyroid?

It is treated with

oral administration of thyroid replacement hormone

. This drug must be given for the rest of the dog's life. The most commonly recommended treatment is oral synthetic thyroid hormone replacement called levothyroxine (brand names Thyro-Tabs® Canine, Synthroid®).

What are the side effects of thyroid medication for dogs?

Side Effects of Thyroxine Use


Skin reactions can occur, but they are quite infrequent

. If given at too high of a dose, your dog may experience thyrotoxicosis. Signs of this may include increased heart rate, appetite, drinking, urination, excitability, panting, and nervousness.

James Park
Author
James Park
Dr. James Park is a medical doctor and health expert with a focus on disease prevention and wellness. He has written several publications on nutrition and fitness, and has been featured in various health magazines. Dr. Park's evidence-based approach to health will help you make informed decisions about your well-being.