what happens when levothyroxine dosage is too high?
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Effects of Too Much Levothyroxine Many of the signs of hyperthyroidism caused by taking too much levothyroxine can be found in the skin. Too much levothyroxine can make the skin unusually warm, due to increased blood flow. Levothyroxine also increases metabolism, causing your body to generate more heat.
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Effects of Too Much Levothyroxine Too much levothyroxine can also affect your digestive tract. Many people lose weight, despite a normal or increased appetite. Excess levothyroxine can also cause more frequent bowel movements or diarrhea, as the hormone speeds the movement of food through the digestive tract.
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- Check blood sugar levels closely.” The drug information sheet for the brand name Eltroxin and generic levothyroxine specifically states that “Levothyroxine raises blood sugar levels. For people with diabetes, this may result in an increase in the requirements for insulin or antidiabetes medications.
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- Symptoms of a levothyroxine overdose may also include: 1  Confusion and disorientation. 2  Shock. 3  Coma. 4  Death.
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- A: Depending on how high of a dose you are on, a double dose of levothyroxine can result in the following symptoms: anxiety, confusion or disorientation, heart palpitations-fast and/or forceful beats, irregular heart beats, high blood pressure, and at very high doses, seizures, strokes, coma, and death.
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- For instance, your doctor may start you with 12.5 to 25 mcg of synthetic T4 (levothyroxine sodium) per day and increase the dose every four to six weeks until laboratory tests show that your TSH and T4 levels are within the normal range.
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Treatment An underactive thyroid (hypothyroidism) is usually treated by taking daily hormone replacement tablets called levothyroxine. Levothyroxine replaces the thyroxine hormone, which your thyroid doesn't make enough of.You'll initially have regular blood tests until the correct dose of levothyroxine is reached.n underactive thyroid is a lifelong condition, so you'll usually need to take levothyroxine for the rest of your life. If you're prescribed levothyroxine because you have an underactive thyroid, you're entitled to a medical exemption certificate.
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What Is Levothyroxine (Synthroid)? Thyroid hormone is not a treatment for obesity, and people with normal thyroid function should not take levothyroxine. If you have a healthy thyroid and take levothyroxine, you could develop life-threatening side effects. This is particularly true if you take the drug with amphetamines. Although levothyroxine treats an underactive thyroid, it's not a cure for the condition.
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- Levothyroxine Side Effects. Heart palpitations, difficulty breathing, and insomnia are among the possible side effects of levothyroxine. You should report any potential side effect to your healthcare provider right away, as it may be a symptom of hyperthyroidism and an indication that your levothyroxine dosage is too high.
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Is my Synthroid dosage too high?Melser Oct 08, 2011 I have been taking 200 mcg of synthroid for 3 years to keep my thyroid level normal. I am having my thyroid removed as Hashimoto's is an auto immune syndrome and my lymph glands have been swollen for about 8 months with no reason according to my doctor.
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Hypothyroid medicine causing high blood pressureJulianne1510 Mar 03, 2008 I did not have blood pressure problems until I started taking Synthroid. I think the high blood pressure is caused by the thyroid meds and the fact that conventional doctors to not address the autoimmune aspect of thyroid disease. Reply. patient2015.
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Why Increase in Levothyroxine Medication?Ami1801 Jan 17, 2012 To: Ami1801. Yes, usually, if your TSH is too low and you feel hyper, a reduction in meds is indicated. Sometimes, after thyroid cancer, doctors like to keep TSH below 0.1 to lessen the chance of recurrence. TSH is very unreliable as an indicator of thyroid status.
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What are the side effects of Levothyroxine if you stop taking it? It is not a drug as such, but merely supplements what the body cannnot produce enough of. Stopping taking levothyroxine would indeed lead to you becoming hypothyroid again. This means you'll feel sluggish and tired, be constantly cold, have dry skin and put on weight. Again I'd advise not to stop taking it unless you want to experience these symptoms.
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Is Your Thyroid Doctor Using the Old TSH Lab Standards? Typically, if there is a low level of thyroid hormone in the body, the pituitary will increase production of TSH to stimulate the thyroid to produce more thyroid hormone. Therefore a high TSH level suggests an underactive thyroid (hypothyroidism), while a low TSH indicates too much thyroid hormone in the body (hyperthyroidism).
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Changing Your Thyroid Prescription If you have too much thyroid hormone, your TSH will be low or absent. Even slight changes in TSH level could signify a serious health risk. The problem is that most patients and many physicians may not be aware that a change in thyroid prescription may change the TSH and pose serious health risks.
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Hypothyroidism: Overview, Causes, and Symptoms It is important that the correct amount of thyroid hormone is used. Not enough and the patient may have continued fatigue or some of the other symptoms of hypothyroidism. Too high a dose could cause symptoms of nervousness, palpitations or insomnia typical of hyperthyroidism.
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Am I taking the correct medication for high TSH level? A. You have hypothyroidism (underactive thyroid) not hyperthyroidism (overactive thyroid). TSH is high in hypothyroidism.You have been appropriately started on thyroid hormone replacement therapy, but the dose will need to be adjusted. You should take this thyroid medication regularly and your doctor should repeat the thyroid function tests (TSH and T4 in 6 weeks).hyroid tests should be done no earlier than 6 weeks for dose adjustments.Hypothyroidism is a long-term condition and does not go away in majority of patients, but if it is adequately treated by thyroid hormone replacement, it does not have any long-term complications.
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Overview Reasons for too much thyroxine (T-4) Normally, your thyroid releases the right amount of hormones, but sometimes it produces too much T-4. This may occur for a number of reasons, including: Graves' disease. Graves' disease, an autoimmune disorder in which antibodies produced by your immune system stimulate your thyroid to produce too much T-4, is the most common cause of hyperthyroidism.
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Making the Most of Your Hypothyroidism Treatment Even then, if you don't follow your doctor’s instructions closely and take your medication properly, you could throw your hormone levels out of whack. Finding the Right Dose of Thyroid Medication. To determine your levothyroxine dosage, your doctor will draw your blood to test for thyroid-stimulating hormone (TSH). This test measures how much thyroid hormone your body is asking your thyroid gland to make. The higher your TSH level, the more starved your body is for thyroid hormone — a sign that your doctor needs to increase your dose of the synthetic replacement hormone.
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Precautions Blood tests will be needed to check for unwanted effects. Levothyroxine should not be used for the treatment of obesity or for the purpose of losing weight. This medicine is not effective for weight reduction. If taken in large amounts, levothyroxine may cause serious unwanted effects. Hypothyroidism can sometimes cause infertility in men and women. Levothyroxine should not be used for the treatment of infertility unless it is caused by hypothyroidism.
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- 1. 9. Levothyroxine is a replacement or supplement thyroid hormone. You will need regular blood tests to check your thyroid levels, particularly at the beginning of this treatment. If you experience any side-effects, speak with your doctor, as your dose may need adjusting.
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- However, changes in the TSH level lag behind serum thyroid hormone levels. Thus, the TSH level should be evaluated no earlier than four weeks after an adjustment in the levothyroxine dosage. The full effects of thyroid hormone replacement on the TSH level may not become apparent until after eight weeks of therapy.12.
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What Is a TSH Test? High Levels of TSH. The normal TSH range is 0.4 to 5 milli-international units per liter (mIU/L). If your level is higher than this, chances are you have an underactive thyroid. Pregnancy can also make your TSH levels higher. If you're on medications like steroids, dopamine, or opioid painkillers (like morphine), you could also get a lower-than-normal reading. Low Levels of TSH. It's also possible that the test reading comes back showing lower than normal levels of TSH and an overactive thyroid. This could be caused by:
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Synthroid Levothyroxine is used to treat an underactive thyroid (hypothyroidism). It replaces or provides more thyroid hormone, which is normally produced by the thyroid gland. Low thyroid hormone levels can occur naturally or when the thyroid gland is injured by radiation /medications or removed by surgery.
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- When the thyroid is inflamed, it often releases too much thyroid hormone, causing hyperthyroidism. Then, when there is no more thyroid hormone to release, the body doesn't have enough, causing hypothyroidism. Young to middle aged women are at the greatest risk.
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Levothyroxine Thyroid hormone should not be used to treat obesity in patients with normal thyroid function. Levothyroxine is ineffective for weight reduction in normal thyroid patients and may cause serious or life-threatening toxicity, especially when taken with amphetamines.