A member asked:

Taken 50mcg. synthroid (thyroxine) 6yrs. new dr. says blood tests show normal range. stopped taking 3wks ago. hair loss, sudden eye floaters, flashes.. cause?

4 doctors weighed in across 2 answers

Synthroid (thyroxine): lasts a long time in your body and hair loss cannot occur in that short a time once you stop it. The levels persist for weeks and decline by only 1/2 every week, Why did you stop and why not restart -- it'll be much healthier for you. The tests were only normal because you were taking the replacement. Your thyroid didn't cure itself.

Answered 1/3/2018

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Dr. John Feola answered

Specializes in Internal Medicine

ALOPECIA TX: RESTART SYNTHROID (thyroxine) Alopecia or hair loss : You need Exam &lab work up especially Vit d/Thyroid studies /TESTOSTERONE/ b12 and folate. If they are normal start high dose Biotin zinc B12 and folic acid.. Rogaine and Propecia may be helpful. ALSO MASON-PEARSON BOARS HEAD HAIR BRUSH .If there is no improvement consult dermatology for biopsy to rule out auto-immune ALOPECIA AERATA..

Answered 7/14/2015

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