Tag: iron and levothyroxine timing
Iron Supplements with Levothyroxine: The 4-Hour Rule to Avoid Reduced Absorption
- By : Tamsin Riverton
- Date : Dec 4 2025
Taking iron with levothyroxine can block thyroid hormone absorption, leading to fatigue and high TSH. Learn the 4-hour separation rule backed by medical guidelines and real patient results to ensure your medication works.
