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Doctor insights on: Use Of Thyroxine

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Dr. David Sneid
1,446 doctors shared insights

Thyroxine (Definition)

Thyroxine is a thyroid ...Read more


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Is there synthetic acth and TSH to use instead of Synthroid (thyroxine) and cortef?

Is there synthetic acth and TSH to use  instead of Synthroid (thyroxine) and cortef?

Yes : There are acth and TSH but if your adrenal and thyroid is missing or not working, then these two hormones will do nothing to help you. ...Read more

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Weights loss as a side effects of thyroxine use - how much is too much?

Weights loss as a side effects of thyroxine use - how much is too much?

When TSH is low: People who take thyroxine for simple hypothyroidism should have normal TSH to be safe. They should not loose weight, unless their prior weight gain was due to hypothyroidism. Taking too much thyroxine can cause atrial fibrillation and osteoporosis. On the other hand people with thyroid cancer are sometimes given a slight excess of thyroxine to prevent the cancer from returning. ...Read more

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What stops thyroxine from working?

When you stop taking: Thyroxin stops working only when you stop taking it. ...Read more

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What does excess thyroxine do in the body?

What does excess thyroxine do in the body?

Hyperthyroidism: If you are hyperthyroid, it will cause symptoms; common ones are heat intolerance, palpitations, nervousness, tremor, diarrhea, irritability. It causes bone loss (osteoporosis) over time. It places a stress on your heart, which may be tolerated when young, but not with aging. It can be treated, but you may need to see an endocrinologist. ...Read more

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What can too much thyroxine do to the body?

What can too much thyroxine do to the body?

Problems: Like anything else, too much of a good thing is also no good. Too much thyroxine causes hyperthyroidism. This can cause palpitations, irregular heart rhythms, bone loss, muscle weakness, trouble sleeping, anxiety. In essence, thyroid hormone affects every part of your body. ...Read more

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Can i cut my Synthroid (thyroxine) in half?

Can i cut my Synthroid (thyroxine) in half?

Ask your treating Dr: Only your treating dr. Can answer that question after doing appropriate lab work for your thyroid, good luck. ...Read more

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Is generic Synthroid (thyroxine) okay to take?

Is generic Synthroid (thyroxine) okay to take?

Yes: Generic synthroid is called levothyroxine. Taking generic version is reasonable and will likely achivevsimilar results , however i would recommend that you inform your endocrinologist about such switch as you may need to have your thyroid levels checked soon (a few weeks) after making the switch to ensure your dosing is appropriate. I would also recommend that you adhere to one kind of preparation. ...Read more

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What can replace 200 MG synthroid (thyroxine)?

Generic form: There are several generic forms now available and very inexpensive, too. Also, before Synthroid, (thyroxine) Armour thyroid pills were used. There is no over the counter equivalent or supplement that does the job! Don't even try! ...Read more

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What are the symptoms of overdose of thyroxine?

What are the symptoms
of overdose of thyroxine?

See below.: Thyroxine overdose can cause tremors, anxiety, increased heart rate, increased body temperature, agitation, confusion, diarrhea, and seizures. If you are ever worried that an overdose has occurred, call 911. If you’re less certain and feel the situation is less of an emergency, call 800.222.1222 for guidance. ...Read more

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Is 250 mcg of synthroid, (thyroxine) excessive?

Is 250 mcg of synthroid, (thyroxine) excessive?

Probably.: That is 2 1/2 times the average amount needed to treat someone with no thyroid gland. Hyperthyroidism would be a consequence ot taking a high dose. ...Read more

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What is the shelf life of synthroid (thyroxine)?

What is the shelf life of synthroid (thyroxine)?

Shelf life Synthroid (thyroxine): This is a question for your friendly neighborhood pharmacist ...Read more

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What are the symptoms of underdose of thyroxine?

What are the symptoms of underdose of thyroxine?

Hypothyroidism: When thyroid hormone is low people symptoms are highly variable from person to person. Some people do not have symptoms from mildly low thyroid hormone. Symptoms depend on degree of deficit and amount of time the hormone has been low. Here are some symptoms that are possible; fatigue, constipation, weight gain, cold intolerance and dry skin. ...Read more

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Is 93bpm with thyroxine notmal or obermedicated?

Can't tell: 93 BPM refers to your heart rate. Under 100 is normal. You cannot assess thyroid levels by looking at heart rate. You should have thyroid blood tests of TSH and free T4 to see if you are on the correct dose. ...Read more

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Anything I can take OTC for levoxyl (thyroxine)?

No: If you need thyroxine (of which Levoxyl is just one brand) because you are hypothyroid in this country you need thyroxine. ...Read more

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Is there synthetic acth and TSH to use instead of Synthroid (thyroxine) and cortef?

Yes : There are acth and TSH but if your adrenal and thyroid is missing or not working, then these two hormones will do nothing to help you. ...Read more

Dr. Joseph Mathews
629 doctors shared insights

Synthroid (Definition)

Synthroid is a thyroid ...Read more


Dr. Charles Gordon
225 doctors shared insights

Levoxyl (Definition)

Levoxyl is a thyroid ...Read more