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A 35-year-old member asked:

if you have a normal tsh and t4 levels but your t3 (liothyronine) is low do you need to increase levothyroxine?

1 doctor answer1 doctor weighed in
Dr. Robert Lang
Endocrinology 52 years experience
Depends: The T3 (liothyronine) may be low before you take your medication and isn't necessarily abnormal. If you still have symptoms and the TSH is not in the low part of the normal range then adding more levothyroxine is probably the right thing to do. Some people do not convert enough of the T4 to T3 (liothyronine) and they need to take some T3 (liothyronine) in addition to T4 or take a natural thyroid med like Armour Thyroid or nature-throid.

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Similar questions

Afghanistan
A 19-year-old male asked:

My TSH is 0.741 uIU/ml, T3 (liothyronine) is 1.33 ng/ml, T4 is 7.61 ug/dlMy doc perscribed me levothroxine?

1 doctor answer1 doctor weighed in
Dr. Michael Kleerekoper
A Verified Doctor answered
A US doctor answered Learn more
Thyroid: Hard to. comment because different laborities have different levels on thyroid measurement. Ask your doctor to tell you the reference values for your thyroid. data.
Mexico
A 22-year-old female asked:

I'm taking 200mg of levothyroxine, my tsh is 0.1 and t3 (liothyronine) and t4 are normal. It's subclinical hiperthyrodism?

1 doctor answer1 doctor weighed in
Dr. Gurmukh Singh
Pathology 49 years experience
May be: Your TSH is a little on the low side. What is your free T4 level? If that is normal there is no urgency but you should talk to your doctor about adjusting your dose.

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Last updated Jan 15, 2015

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