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Doctor insights on: Tsh Levothyroxine Symptomatic

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Is it pretty common to have normal TSH level (levothyroxine 12 yrs) but still be symptomatic?

Is it pretty common to have normal TSH level (levothyroxine 12 yrs) but still be symptomatic?

Yes: Thyroid levels does not take into account the peripheral conversion of t4-t3 sometimes T3 (liothyronine) at tissue level would be low. I found environmental pollution and increased plastic usage thyroid requirements are higher. People who has muscle issues - myopathy has higher thyroid need. ...Read more

Dr. Quang Nguyen
893 doctors shared insights

Thyroid Stimulating Hormone (Definition)

A TSH test measures the amount of thyroid stimulating hormone (TSH) in your blood. TSH is produced by the pituitary gland and tells the thyroid gland to make and release the hormones thyroxine ...Read more


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Dear sir, some experts says you should take levothyroxine even your TSH is normal ?

Dear sir, some experts says you should take levothyroxine even your TSH is normal ?

Please clarify: Hi. When a hypothyroid person is treated with l-thyroxine, we normalize their TSH. That person must continue to take their l-thyroxine to keep their thyroid function normal. Taking thyroid hormone treats, but does not cure, hypothyroidism; the hormone must keep on being taken. A person who's not hypothyroid (who has normal TSH, of course) should of course NOT take l-thyroxine - they're normal! OK? ...Read more

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If the level of my TSH is below of 0.05 do I have to reduce the dosage.I'm taking 150 mg now of levothyroxine?

If the level of my TSH is below of 0.05 do I have to reduce the dosage.I'm taking 150 mg now of levothyroxine?

Likely yes,,: This is below normal TSH and the dose of levothyroxine appears very high. It'd be a great idea to see your doctor real soon for an exam and dose adjustment so it's done correctly. Best of luck. ...Read more

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Since being on lithium my TSH has gone from 1.5 to 8.4. What does that mean? I already take 25 mcg of levothyroxine.

Since being on lithium my TSH has gone from 1.5 to 8.4.  What does that mean? I already take 25 mcg of levothyroxine.

Lithium: Your elevation of TSH means that your thyroid gland is under-functioning, or hypothyroid. This is a known side effect of lithium. Please talk with your endocrinologist and psychiatrist about this -- it is severe enough that at the very least, you'll need to adjust your thyroid medication if not possibly change to a different mood stabilizer. ...Read more

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Had my TSH checked this past july came back normal 2.580. dr said to stay on .137 mc of levothyroxine. Do you agree with dosage?

Had my TSH checked this past july came back normal 2.580.  dr said to stay on .137 mc of levothyroxine.  Do you agree with dosage?

Hypothyroidism: Hi, if your TH and Ft4 are within normal values and you have no symptoms of hyper/hypothyroidism then your doctor recommendation seems reasonable. Take care. ...Read more

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Please tell me risks of stopping levothyroxine at .25 mcg when my TSH is 1.907. Taken for 1 year. 1 yr ago it was 3.5. Without levothyroxine.

You'll get worse: Marianna, You have hypothyroidism. Your thyroid gland does not produce enough thyroid hormone. The reason that your TSH is better is because the synthetic thyroid hormone (synthroid) your doctor prescribed is replacing yours, and telling your brain to stop making TSH. It is also helping your symptoms. Stopping it would cause your symptoms to recur. Hope this helps! ...Read more

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I have been on 125 mcg of levothyroxine for many years. Recently has TSH done and result was 1.18. Dose now 112. Now test 5.0. Is this normal?

I have been on 125 mcg of levothyroxine for many years. Recently has TSH done and result was 1.18. Dose now 112. Now test 5.0. Is this normal?

Need more thyroid: More important than the TSH is how you are feeling. Thyroid blood tests are often a waste of blood. If your heart rate is normal, and you're feeling well, you are on the right dose. Most hypothyroid patients feel better with a low TSH. Also, levothyroxine (T4) is inactive, and must be deiodinated to active T3 (liothyronine). Armour thyroid (a combination of T3 (liothyronine) and T4) is usually more effective than T4 alone ...Read more

Dr. David Sneid
1,375 doctors shared insights

Thyroxine (Definition)

Thyroxine is a thyroid ...Read more


Levothyroxine (Definition)

Of the hormone produced by one's own ...Read more