I have been taking thyronorm medicines cause of thyroid problem during my pregnancy from 5 years. My medicine was 100 mcg on weekdays and 125 mcg on weekends. Report of t3 is 0.82 t4 is 8.65 and tsh is 0.79. Doctor told me that tsh level below 1 is very dangerous and I need to reduce my medicine to 50 mcg as my neck does not show any bulge. After 20 days I took test and report is t3 0.81 t4 is 5.19 tsh is 21. 1. Should I move back to my prev dose? Was my prev tsh very low? 2. Any other test needed like antibody or selenium? 3. My diet is not very high in fried and am going for walk and yoga. Does it help in getting rid of medicine in any way. I am 8 kgs overweight. Pls suggest thank you.

Dr. Prabhakar Laxman JatharEndocrinologist51yrs exp

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Hello, Thanks for the query. Madam I have seen the details given. Following are my observations : 1) To remain free from symptoms of hypothyroidism one needs to maintain TSH around 3 to 4 mU/L, the range usually is 0.5 to 5 mU/L. It may vary depending upon the labs standerdasation. 2) 0.&9 mU/L was not too dangerous, but definitely closer to lower limit of TSH. At this value there is no real problem of having any hyperthyroidism symptoms. Those do appear when TSH goes <0.1 mU/L. 3) Sudden changes either lowering or increasing is not at all advisable. Therefore a drop of 50 mcg per day was too much. That has resulted in increase in TSH and leading to more of hypothyroidism. 4)Dosage should always be raised or reduced by 12.5 to 25 mcg per day. 5)Now you will have to go back to 100 mcg per day on all days. No additional dose on week ends. Then check TSH again after 6 weeks. I hope things are clear. Selenium is useful in reducing Anti TPO antibodies (which are not mentioned). Hypothyroidism is a hormone (Thyroxine ) deficiency disorder, which means your gland is not producing either enough or not at all, so there is a need for daily supplementation for life time. There is no other treatment. Plus the condition is not at all troublesome if you maintain TSH as mentioned and take Thyroxine as required. If you have any questions please do come back. Thanks. 

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