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Suggest Dosage For Thyroxine

Posted on Tue, 18 Oct 2016

Question: What is ideal dosage for TSH 17, my wife requires a suggestion

Answered by Dr. Minal Mohit (11 hours later)

Brief Answer:
Thyroxine dosage is determined by body weight and not TSH level.

Detailed Answer:
Dear Mr. xxxxxxx, Hi ! welcome to HCM.
TSH 17, is an indicator of hypothyroidism, and your wife needs replacement definitely. But there is no word like ideal dose. dose is started by body weight say 1-1.5 mcg /kg /day. then it is titrated up or down depending upon the follow up reports, which are done every 3 -4 months.
regards!

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Minal Mohit (10 hours later)

Thank you madam, to breif you history in the month of April TSH is 4.7, August it increased abruptly to 17. Her age is 28 and weight :82 kgs.
Right now she is taking 150mg since mid of aug.Appreciate any further uggessions Madam s

Answered by Dr. Minal Mohit (20 hours later)

Brief Answer:
recheck after 6-8 weeks.

Detailed Answer:
Dear Mr. xxxxxxx, hi!, what i could get was that the dose of 150 mcg was made after seeing TSH of 17, so now nothing more to be done, wait and watch for next few weeks. once she has completed 6-8 weeks with 150 mcg, repeat TSH and FT4 and let me know.
regards!

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Above answer was peer-reviewed by : Dr. Veerisetty Shyamkumar