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Doctor insights on: T4 Dosage Bodybuilding

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Aged 62 yrs. Free T4 is 2.38 and TSH is 0.005. what is the dosage of Eltroxcin to be taken?

Aged 62 yrs. Free T4 is 2.38 and TSH is 0.005. what is the dosage of Eltroxcin to be taken?

More details needed: The TSH is low suggesting you have too much thyroid. Different labs have diff. Normal ranges so hard to comment on the Free T4 without knowing lab's normal range- might be high, might be low and we can't tell! Also we need to know if you are currently taking Eltroxcin and, if so, how much.
In general, it would be wiser to ask the doctor who ordered the test. ...Read more

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Dr. Heidi Fowler
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Weight Training (Definition)

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Tsh is 0 048 T4 12 3 on 100 mcg Synthroid (thyroxine) dr decreased my dosage to half is this correct?

Recheck in 6 weeks: Don't forget to have your level rechecked 6 weeks after the change in dose, to insure further changes are needed. Make sure you're receiving brand name synthroid, (thyroxine) not a generic. ...Read more

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On 75 mcg Synthroid for 8 months and TSH is. 7, FT4 1.46, FT3 3.3 but still wake at 2am. Lower T4 dosage, wait it out or investigate cortisol issues?

On 75 mcg Synthroid for 8 months and TSH is. 7, FT4 1.46, FT3 3.3 but still wake at 2am. Lower T4 dosage, wait it out or investigate cortisol issues?

NO: Your labs suggest you are on the right dose of synthroid. When you take it (should be in the AM) can affect sleep. If you are taking it correctly, I would recommend exploring other causes of your wakefulness ...Read more

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In July my THS was 1.54, in August 0.14 on dosage of 137 mcg Synthroid (thyroxine).T4 free 37pmol/L Thyroid cancer No RAI I dont'n know what cause this big change?

In July my THS was 1.54, in August 0.14 on dosage of 137 mcg Synthroid (thyroxine).T4 free 37pmol/L Thyroid cancer No RAI I dont'n know what cause this big change?

Actually: In the "low" TSH "range" there is not a lot of difference in those values. You indicate that thyroid medication is being given for a thyroid cancer of some kind and that RAI has not been given. I therefore "assume that your Physician (? Endocrinologist) is trying to SURPRESS your TSH (thus the 0.14 is BETTER than the 1.54 readings!!
SO IT'S NOT REALLY A "BIG CHANGE " and in fact is BETTER.!!!
Z ...Read more

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Hi my TSH is 16 in spite of taking 100mcu of thyroxine. What is the best dosage. T3 (liothyronine) n T4 r normal?

Hi my TSH is 16 in spite of taking 100mcu of thyroxine. What is the best dosage. T3 (liothyronine) n T4 r normal?

Hypothyroidism: If free T4 is normal and you have no clinical signs or symptoms and TSH is elevated, you should be okay. Your doctor will make that determination. ...Read more

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My T3 (liothyronine) : 78 ; T4 :6.9 & TSH 9.24. My daily dosage is one tablet of 25mcg thyroxine. Do I need to increase or decrease my dosage?

My T3 (liothyronine) : 78 ; T4 :6.9 & TSH 9.24. My daily dosage is one tablet of 25mcg thyroxine. Do I need to increase or decrease my dosage?

Hypothyroid: Your thyroid level is way too low. Please follow the instructions given you by your physician. No physician would be prescribing you this dose given your lab results. ...Read more

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Would an oncologist or an endocrinologist be good at getting my Armour Thyroid dosage correct, I asked to switch from t4. Endo's don't live in my area?

Would an oncologist or an endocrinologist be good at getting my Armour Thyroid dosage correct, I asked to switch from t4. Endo's don't live in my area?

Endo: The thyroid gland definitely falls under the purview of the endocrinologist, who studied the thyroid in detail as part of their training. Most internists and board certified family medicine physicians can treat this if you have no endo doctors in your area. ...Read more

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My TSH is 9 & my TSH Reflex to Free T4 is 1.29, I still feel Fatigued & I don't feel well should I have my Dosage of Levothyroxine increase to 100 MCG?

My TSH is 9 & my TSH Reflex to Free T4 is 1.29, I still feel Fatigued & I don't feel well should I have my Dosage of Levothyroxine increase to 100 MCG?

TSH values: The TSH is your pituitary gland at the bottom of your brain talking to your thyroid gland saying "I don't see enough thyroid hormone around here." It stands for Thyroid Stimulating Hormone. You should speak to a good endocrinologist about your situation pronto and yes you should be on a higher dose of thyroid replacement hormone. ...Read more

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After 2months of having my thyroid removed TSH level 40, taking t4175mg, getting fat. Shall I try to combine t4&t3, in which dosages?

After 2months of having my thyroid removed TSH level 40, taking t4175mg, getting fat. Shall I try to combine t4&t3, in which dosages?

Need higher dose: The high TSH shows that your thyroid level is still low. 175 mcg of T4 is a relatively high dose. Your are probably not absorbing the medication correctly. You must be sure to take it on an empty stomach, wait at least 40 min before eating, do not take it with any supplements or other meds. You should be on a brand-name thyroid, such as synthroid (thyroxine) or tirosint, not generic. ...Read more

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My TSH Level is high 9.5 but T3 (liothyronine) & T4 levels are within normal range. I am taking thyroxine 50 mcg. Do u recommend change imn dosage?

My TSH Level is high 9.5 but T3 (liothyronine) & T4 levels are within normal range. I am taking thyroxine 50 mcg. Do u recommend change imn dosage?

Hypothyroidism: Once you are on Levothyroxine, there is no point in checking your T3 (liothyronine) or T4 levels. You should see your doctor and probably you need to take a higher dose keeping with your TSH levels. Your TSH needs to be checked 2-4 weeks after dose adjustment. Please do not increase it on your own and talk to your doctor. ...Read more

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Ttc. Diagnosed with hypothyroidism taking 100 Mcg. Recent report tsh 0.26, t3 1.06 and t4 11.4... is this normal right dosage. I am trying to conceiv?

Ttc. Diagnosed with hypothyroidism taking 100 Mcg. Recent report tsh 0.26, t3 1.06 and t4 11.4... is this normal right dosage. I am trying to conceiv?

Right levels: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Having said that, the information you provided is within normal levels.
Start taking pre-natal vitamins.
Wish you good health and a healthy baby. ...Read more

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What are some reasons why thyroid blood levels tsh, t3, (liothyronine) T4 can fluctuate within a short amt of time (every 6 wks) resulting in a dosage change?

What are some reasons why thyroid blood levels tsh, t3, (liothyronine) T4 can fluctuate within a short amt of time (every 6 wks) resulting in a dosage change?

Need dose adjustment: Thyroid gland reacts daily stress and strain of daily life, once your doctor fine tunes and adjusts right dose and medications, to your body's need, you will be ok. Follow your doctor's advise. ...Read more

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Thyroid: doc reduced dosage; symptoms returning. Tsh/t3/t4 'normal' on current dose, but I'm unwell again. Why docs only consider blood, not symptoms?

Thyroid: doc reduced dosage; symptoms returning. Tsh/t3/t4 'normal' on current dose, but I'm unwell again. Why docs only consider blood, not symptoms?

Doc's look at it all: Doctors look at all the information, which includes the symptoms reported by the patient, the test results, and what's found on the exam. Just ask the doctor again, on the next visit. One can also get a second opinion to see if matches the current doctor's opinion. That means one should have ppo insurance or better, which allows one to have a larger choice of doctors to go to for a second opinion. ...Read more

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TSH w/reflex to T4 was 0.25. T4 free 1.2. T3 free 2.7. Tsh level was higher and synthroid (thyroxine) 137mg. Still on same dosage. Would this cause fatigue?

TSH w/reflex to T4 was 0.25. T4 free 1.2. T3 free 2.7. Tsh level was higher and synthroid (thyroxine) 137mg. Still on same dosage. Would this cause fatigue?

Possibly.: The low TSH with associated normal free T4 and free T3, (liothyronine) suggests borderline hyperthyroidism (overactive thyroid) which can cause fatigue. However, one should seek a thorough medical exam prior to concluding that the symptom of fatigue is not due to some other problem. ...Read more

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I've been on the same dose of Levothyroxine for 3 years (0.75mcg) & free t4 has always been normal (1.6). Recently, my FT4 was elevated (2.30) Why???

I've been on the same dose of Levothyroxine for 3 years (0.75mcg) & free t4 has always been normal (1.6). Recently, my FT4 was elevated (2.30) Why???

Unsure: If someone has changed the way they take their thyroid medications - if you were taking w/ food and now on empty stomach, if there is a new batch of thyroid meds there can be some variation in potency, less fiber in your diet, lab error, stopping eating soy, herbal supplements, stopping antidepressants or cholesterol meds, taking steroids or being sick --- these can all effect FT4 and TSH levels ...Read more

Dr. David Sneid
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