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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Does Levothyroxine Interact With Calcium Supplements?

I was taking levothyroxine every morning 30 minutes before breakfast after finish my breakfast I toke calcium carb 648mg and vitamin D3 for 30 days and i just read know that I shouldn t eat calcium after levothyroxine Antil at least 4 hours so please some one answer back I m so worried please let me know if it s ok if not tell me what to do
Thu, 13 Jun 2019
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General & Family Physician 's  Response
Hello,

Yes, Calcium supplements or antacids containing calcium can interfere with the absorption of thyroid hormone replacement medications such as synthetic thyroid hormones levothyroxine as well as thyroid extract supplements. Keep a gap of at least 4 hours between the two medication.

Hope I have answered your query. Let me know if I can assist you further.

Take care

Regards,
Dr AJEET SINGH, General & Family Physician
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Does Levothyroxine Interact With Calcium Supplements?

Hello, Yes, Calcium supplements or antacids containing calcium can interfere with the absorption of thyroid hormone replacement medications such as synthetic thyroid hormones levothyroxine as well as thyroid extract supplements. Keep a gap of at least 4 hours between the two medication. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr AJEET SINGH, General & Family Physician