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Doctor insights on: How Does Thyroxine Help Maintain Body Heat

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43y,fib 5cm,hvy periods,hypothyroid,now perinicious aneamia,unable to tolerate thyroxine,lot of heat in body, with PA thyroxine intolerance is there?

43y,fib 5cm,hvy periods,hypothyroid,now perinicious aneamia,unable to tolerate thyroxine,lot of heat in body, with PA thyroxine intolerance is there?

Thyroxine dosage: If you are hypothyroid and your TSH is elevated, you do need thyroxine. The dosage needed should be adjusted, measuring your blood level of free T4 and T3, (liothyronine) and giving only as much as is needed to lower your TSH to the normal level. This is independent of your pernicious anemia. You don't have thyroxine intolerance, but you may need a relatively smaller dose (the amount needed varies for each). ...Read more

Dr. David Sneid
1,375 doctors shared insights

Thyroxine (Definition)

Thyroxine is a thyroid ...Read more


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I've been taking Synthroid (thyroxine) (or Armour Thyroid) since 2012. However, I'm still tired, cold a lot & am struggling a bit to maintain my usual weight.

I've been taking Synthroid (thyroxine) (or Armour Thyroid) since 2012. However, I'm still tired, cold a lot & am struggling a bit to maintain my usual weight.

HYPOTHYROIDISM: HYPOTHYROIDISM can cause a myriad of symptoms. In women it can cause weight gain /fatigue/dysfunctional uterine bleeding resulting in a secondary anemia. I have better success with Armour thyroid and try to get TSH<1. Additionally Cytomel(T3) can be added. Also gluten free diet(WHOLEAPPROACH .COM) also Topamax (topiramate) at bedtime can be addedGet your levels checked regularly and follow up with your doctor. ...Read more

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I have thyroxine intolerance?it works,tsh-3.0,but lot of heat,diarrohea etc.may be allergy. need opinion on Tirosint.pls help.,any other med i can try

Not allergy: Your symptoms do not sound like an allergy to your thyroid medication. Such allergies are extremely rare. Tirosint is a different brand of levothyroxine, that may be absorbed into your system better, but likely will not change your symptoms. I suspect your symptoms are not related to your thyroid or thyroid level. ...Read more

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What happens. If i miss my Synthroid (thyroxine) for 2 momths n i take 1mcg i jus got a script what. Happens to my body besides the way i felt n hairs falln outet?

What happens. If i miss my Synthroid (thyroxine) for 2 momths n i take 1mcg i jus got a script what. Happens to my body besides the way i felt n hairs falln outet?

The medication: Doesn't help you if you don't take it. There is no 1 microgram dose. Do you mean 100 mcg, which is a yellow pill. Not taking your medication may cause all your symptoms to recur. Restart the medication and return your levels to normal -- do it for the rest of your life. ...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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How do you know if your body needs synthroid (thyroxine)?

How do you know if your body needs synthroid (thyroxine)?

See a doctor.: An examination by a health care provider and a simple blood test will reveal if you need to be treated with levothyroxine (generic synthroid). Then you'll know for sure! ...Read more

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Can a high dose of Synthroid (thyroxine) do harm to the body?

Can a high dose of Synthroid (thyroxine) do harm to the body?

If excessive : Some people need a higher than average dose to keep the thyroid hormone levels normal, but in excess, i.e. If the thyroid hormone levels are high, it can cause an irregular heartbeat and can lead to early osteoporosis. ...Read more

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What are the risks when your body doesn't have enough medication to level your thyroid?Ie: not enough Synthroid (thyroxine) medication

What are the risks when your body doesn't have enough medication to level  your thyroid?Ie: not enough Synthroid (thyroxine) medication

Lack of meds: If you don't have a thyroid and don't take your thyroid medication you will become hypothyroid. Hypothyroidism will cause many symptoms including myxedema coma, a rare but life-threatening state of very severe hypothyroidism. ...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

Dr. Joseph Mathews
592 doctors shared insights

Synthroid (Definition)

Synthroid is a thyroid ...Read more


Dr. Charles Gordon
210 doctors shared insights

Levoxyl (Definition)

Levoxyl is a thyroid ...Read more