Treatment FAQ

what is treatment for hyperthyroidism in cats

by Freda Harber Published 2 years ago Updated 2 years ago
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How is hyperthyroidism in cats treated? One way to treat a cat with hyperthyroidism is with an oral medication that contains methimazole. The medication can be given life-long or to stabilize the cat before other treatment options, such as radioactive iodine therapy or surgery.Dec 3, 2019

What natural remedies can help hyperthyroid cat?

Felimazole Coated Tablets (methimazole) is the only drug that’s FDA-approved to treat hyperthyroidism in cats. Hyperthyroidism results when the thyroid gland over-produces thyroid hormones.

What should you do about a cat with hyperthyroidism?

Dec 21, 2021 · There are four ways to treat a cat that has been diagnosed with hyperthyroidism: dietary treatment, surgery, medication, and radioactive iodine therapy. Each option has its pros and cons and may not be right for every cat but the majority of cat owners opt to treat the …

How to tell if a cat has hyperthyroidism?

Apr 29, 2022 · “Cats with hyperthyroidism can take a pill every day to decrease the thyroid levels circulating in their bodies,” says Ochoa. “This would be lifelong medication. This is usually the …

How long do cats live with hyperthyroidism?

Jan 12, 2022 · How are cats with hyperthyroidism treated? There are three types of treatments for hyperthyroidism: life-long oral anti-thyroid medications; surgical removal of affected thyroid …

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What is the most common treatment for hyperthyroidism in cats?

When available, radioactive iodine therapy is the treatment of choice for cats with hyperthyroidism. During treatment, radioactive iodine is administered as an injection and is quickly absorbed into the bloodstream.

How long can a cat live with untreated hyperthyroidism?

The median survival times reported are 25 (iodine 131 treatment),1 24 (radioiodine treatment),2 and 48 months (iodine 131 treatment),3 with a more recent paper citing 14 months (carbimazole or methimazole treatment alone or in combination with thyroidectomy).Sep 30, 2010

How much does it cost to treat a cat with hyperthyroidism?

The cost for any treatment for feline hyperthyroidism is significant. The fee for radioiodine therapy ranges from $1,685 - $1,910, depending on how much drug is required to treat each patient (which also factors into the required length of hospitalization in the nuclear ward).

Do cats with hyperthyroidism suffer?

This means that in addition to years of dietary distress, general restlessness and nervousness, and hair loss, a cat whose feline hyperthyroidism is untreated can suffer from heart problems that can be fatal.

Are cats in pain with hyperthyroidism?

In addition, hyperthyroidism can cause hypertension or high blood pressure, and result in damage to the eyes, kidneys, and brain. Cats with untreated hyperthyroidism can also endure pain and a lower quality of life due to the symptoms of the disease.

What are the final stages of hyperthyroidism in cats?

Over time, this progresses to increased blood pressure, severe weight loss, heart disease, blindness, and kidney damage. The slow onset of signs means that cat owners will often miss these changes until the late stages of disease.Feb 26, 2015

Why do hyperthyroid cats meow so much?

Signs of anxiety in a cat – including pacing, yowling for no apparent reason, and restlessness – are a common symptom of feline hyperthyroidism. This is due to increased stimulation in the nervous system which is a common occurrence in cats with feline hyperthyroidism.

Is hyperthyroidism in cats treatable?

How is hyperthyroidism in cats treated? One way to treat a cat with hyperthyroidism is with an oral medication that contains methimazole. The medication can be given life-long or to stabilize the cat before other treatment options, such as radioactive iodine therapy or surgery.Dec 3, 2019

What are symptoms of hyperthyroidism in cats?

Hyperthyroidism symptoms you might spot
  • Losing weight despite (usually) a voracious appetite.
  • Overeating – but occasionally a loss of appetite.
  • Drinking and urinating more (litter trays will be wetter)
  • Vomiting.
  • Hyperactivity, restlessness, nervousness – sometimes irritability or aggression.

What foods should you avoid with hyperthyroidism?

A person with hyperthyroidism should avoid eating excessive amounts of iodine-rich foods, such as:
  • iodized salt.
  • fish and shellfish.
  • seaweed or kelp.
  • dairy products.
  • iodine supplements.
  • food products containing red dye.
  • egg yolks.
  • blackstrap molasses.

Does hyperthyroidism in cats shorten lifespan?

Hyperthyroidism is a serious condition—and, without proper treatment, the disorder can adversely affect your cat's lifespan. “Left untreated, hyperthyroid cats will have a shortened lifespan,” says Dr. Downing.

Can cats take antithyroid medication?

Some cats may experience side effects from medication, however, including vomiting, anorexia, fever, anemia, and lethargy. Lifelong treatment, usually involving twice-daily oral dosage, will be required, and for some owners and cats, this dosage schedule may be difficult to maintain. Antithyroid medications are also available in a gel ...

What is the cause of hyperthyroidism in cats?

Also called thyrotoxicosis, hyperthyroidism is caused by an increase in production of thyroid hormones (known as T3 and T4) from an enlarged thyroid gland in a cat’s neck. In most cases, enlargement of thyroid glands is caused by a non-cancerous tumor ...

What causes a cat to vomit?

Vomiting. Diarrhea. Anorexia. Anesthesia. Hyperthyroidism is a common disease in cats, and mostly afflicts cats middle-aged and older. Also called thyrotoxicosis, hyperthyroidism is caused by an increase in production of thyroid hormones (known as T3 and T4) from an enlarged thyroid gland in a cat’s neck. In most cases, enlargement of thyroid ...

What is the disease of a cat?

Diarrhea. Anorexia. Anesthesia. Hyperthyroidism is a common disease in cats, and mostly afflicts cats middle-aged and older. Also called thyrotoxicosis, hyperthyroidism is caused by an increase in production of thyroid hormones (known as T3 and T4) from an enlarged thyroid gland in a cat’s neck. In most cases, enlargement ...

Can cats have thyroid problems?

Thyroid hormones affect nearly all of the organs in the body; therefore, thyroid disease often causes secondary problems. Clinical Signs. Cats afflicted with hyperthyroidism usually develop a variety of signs that may be subtle at first but that become more severe as the disease progresses.

How do you know if your cat has hyperthyroidism?

The most common clinical signs of hyperthyroidism are weight loss, increased appetite, and increased thirst and urination. Hyperthyroidism may also cause vomiting, diarrhea, and hyperactivity.

How to tell if a cat has thyroid issues?

The most common clinical signs of hyperthyroidism are weight loss, increased appetite, and increased thirst and urination. Hyperthyroidism may also cause vomiting, diarrhea, and hyperactivity. The coat of affected cats may appear unkempt, matted, or greasy (see Figure 1). A veterinarian who suspects a cat has a thyroid problem will conduct ...

How to treat hyperthyroidism in cats?

Many factors must be considered when choosing the best therapy for an individual cat. The treatment options for hyperthyroidism are: Surgery. Surgical removal of the affected thyroid gland (s) may be very effective.

Can cats develop hyperthyroidism?

Older cats are at greater risk for developing hyperthyroidism. Environmental risk factors have been investigated and may predispose some cats to hyperthyroidism, although the specific mechanisms are not known. Exposure to high levels of dietary iodine may cause susceptible cats to develop hyperthyroidism.

How do you know if your cat has hyperthyroidism?

The most common clinical sign of hyperthyroidism is weight loss due to the increased rate of metabolism despite an increased appetite. Affected cats are often restless, and may become cranky or aggressive. They may have increased water consumption and urination.

What are the complications of hyperthyroidism?

Two secondary complications of hyperthyroidism can be significant; hypertension (high blood pressure) and a particular form of heart disease called thyrotoxic cardiomyopathy. Hypertension develops due to the increased pumping pressure and elevated heart rate that occurs with thyrotoxic cardiomyopathy.

Why does my cat have a heart murmur?

Thyrotoxic cardiomyopathy may develop because the heart enlarges and thickens to meet the increased metabolic demands. In some cases, the cat will develop a heart murmur associated with the cardiomyopathy. Both cardiomyopathy and hypertension are potentially reversible with appropriate treatment of the disease.

What is the best test for a cat?

These tests are needed to evaluate the overall health of your cat and to predict the likelihood of complications with the chosen treatment protocol. Ultrasound of the heart (called echocardiography) may be recommended based on your cat's condition, especially if there is any concern about cardiomyopathy.

Where is the thyroid in cats?

Some hyperthyroid cats have thyroid cells in abnormal locations called ectopic thyroid tissue (thyroid tissue located under the tongue, further down the neck, or all the way to the base of the heart) - and they may remain hyperthyroid after surgery.

Drug Management

One treatment option for cats with hyperthyroidism is the administration of methimazole, which lowers the amount of thyroid hormone produced by your cat’s thyroid gland. This medication must be administered to your cat for the remainder of its life. Methimazole is usually prescribed as an oral tablet.

Dietary Management

Iodine plays an essential role in thyroid hormone production, and your cat gets iodine from its food. Prescription diets that are low in iodine help to reduce the level of thyroid hormone produced.

Surgical Thyroidectomy

Surgical removal of the diseased portion of your cat’s thyroid gland is another option for treating hyperthyroidism. The pro to the surgical option is that if the correct portion of the thyroid gland is removed, the cat will be able to maintain a normal level of thyroid hormones without the need for medication.

Radioiodine Treatment

Radioiodine treatment is the most effective treatment available for hyperthyroidism in cats, making the favorable outcome one of the pros of this option. The treatment involves a single injection of radioactive iodine-131. The procedure requires no anesthesia. No healthy surrounding tissue is destroyed, and no organs are damaged.

Can hyperthyroidism kill cats?

If it is left untreated, it could, and very likely will , slowly kill your feline companion, but not without extreme suffering first. Here are some of the symptoms: Hyperthyroidism is a very common problem in older cats. Luckily there are natural, holistic methods that may help your cat get better.

Can cats take methimazole?

Methimazole needs to be taken orally for life. If it is impossible to give your cat pills , there is a gel alternative that is rubbed in the ear instead. A percentage of cats that take methimazole experience side effects including loss of appetite, vomiting, lethargy, and occasionally blood cell abnormalities.

What is the most common glandular disorder in cats?

Rhonda owns a small holistic pet care business online and consults on the subject. pinterest-pin-it. Hyperthyroidism is when the thyroid gland produces too many of the hormones that regulate the metabolism. It is the most common glandular disorder in cats.

Is raw food good for cats?

The benefits of eating raw food are the same for cats as they are for people: Raw food boosts the immune system by giving our bodies the needed enzymes for digestion and health. Living foods give life to the body's cells.

What is BPA in cat food?

Bisphenol A, known as BPA, is used as a solvent. Polybrominated diphenyl ethers, or PBDEs, are used as a flame retardant. Flame retardant chemicals are often found in fish and cat food made from seafood. BPAs are found in the lining of cat food cans.

Can cats eat raw food?

Eliminate canned and dry pet food, if possible . The benefits of eating raw food are the same for cats as they are for people: Raw food boosts the immune system by giving our bodies the needed enzymes for digestion and health. Living foods give life to the body's cells.

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Causes

Pathophysiology

  • Thyroid hormones affect nearly all of the organs in the body; therefore, thyroid disease often causes secondary problems.
See more on vet.cornell.edu

Symptoms

  • Clinical Signs Cats afflicted with hyperthyroidism usually develop a variety of signs that may be subtle at first but that become more severe as the disease progresses. The most common clinical signs of hyperthyroidism are weight loss, increased appetite, and increased thirst and urination. Hyperthyroidism may also cause vomiting, diarrhea, and hyperactivity. The coat of affected cats …
See more on vet.cornell.edu

Diagnosis

  • Diagnosis A veterinarian who suspects a cat has a thyroid problem will conduct a physical examination and palpate the cats neck area to check for an enlarged thyroid gland (see Figure 2). The cats heart rate and blood pressure may also be checked. If thyroid disease is a possibility, your veterinarian will likely order a blood chemistry panel and an analysis of thyroid hormone lev…
See more on vet.cornell.edu

Treatment

  • Treatment There are four treatment options for feline hyperthyroidism: medication, radioactive iodine therapy, surgery, and dietary therapy. Each treatment option has its advantages and disadvantages. The treatment a cat receives for hyperthyroidism will depend on specific circumstances, including the patients overall health status, the owners abi...
See more on vet.cornell.edu

Results

  • Radioactive iodine therapy is curative within three months of therapy in approximately 95 percent of all hyperthyroid cases. In cases where radioactive iodine therapy is not successful, the treatment can be repeated. Rarely, a permanent reduction in thyroid-hormone levels called hypothyroidism occurs after radioactive iodine treatment. If this is accompanied by clinical sign…
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Benefits

  • Removal of the thyroid glands, called surgical thyroidectomy, is a relatively straightforward surgical procedure that has a good success rate. The advantage of surgery is that it is likely to produce a long-term or permanent cure in most cats, and therefore eliminates the need for long-term medication.
See more on vet.cornell.edu

Clinical significance

  • Because of the important role the thyroid gland plays in the body, some cats with hyperthyroidism develop secondary problems, including heart disease and high blood pressure. Elevated thyroid hormones stimulate an increased heart rate and a stronger contraction of the heart muscle, and can cause thickening of the left ventricle of the heart over time. If left untreated and unmanaged…
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Prognosis

  • Hypertension, or high blood pressure, is another potential complication of hyperthyroidism, and can cause additional damage to several organs, including the eyes, kidneys, heart, and brain. If hypertension is diagnosed along with hyperthyroidism, drugs may be needed to control the blood pressure and reduce the risk of damaging other organs. As in the case of heart disease, after th…
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