If a person is on eltroxin for lifetime and if he is cured how would hr know? His tsh would be low because he's taking eltroxin, so his body would not produce thyroid hormones even if he's cured because he is taking the hormones orally?

Dr. Prabhakar Laxman JatharEndocrinologist46yrs exp

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Mr. lybrate-user, Thanks for your query. Hypothyroidism is a condition wher thyroid gland is either under active or not producing the hormone Thyroxine at all. Because of this TSH is high. This hormone tries to stimulate thyroid to produce thyroxine. Thyroxine is an essential hormone required for day to day functioning of various vital functions in the body, it has to be supplied from outside and that too for lifetime. There is NO CURE, for this condition. When on treatment it is necessary to maintain TSH between 3 to 4 mU/L, so as to be free from all the symptoms of hypothyroidism. If one stops taking the drug levothyroxine, then serious consequences can be seen to occur. Thanks. 

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