Question

A 34-year-old woman has primary hypothyroidism treated with levothyroxine 100 mcg daily. TSH is 8.2 mU/L (high), free T4 low-normal. She takes iron supplements at breakfast with levothyroxine. What is the best advice?

Accepted Answer

Separate iron and levothyroxine by at least 4 hours

Answer

Increase levothyroxine dose to 125 mcg

Answer

Stop iron supplements

Answer

Take levothyroxine at night

Answer

Switch to liothyronine

Practice question

A 34-year-old woman has primary hypothyroidism treated with levothyroxine 100 mcg daily. TSH is 8.2 mU/L (high), free T4 low-normal. She takes iron supplements at breakfast with levothyroxine. What is the best advice?