What Supplements Should I Avoid While Taking Synthroid?

Posted on Sat, 16 Jun 2018

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Sat, 16 Jun 2018 Answered on

Fri, 17 Dec 2021 Last reviewed on

Question : I take Synthroid what supplements should I avoid is astaxanthin and XXXXXXX - q 10 ultra

Answered by Dr. Mirjeta Guni (15 minutes later)

Brief Answer:
About antuoxidants and levothyroxine;

Detailed Answer:

Hello,

There are some supplements such as; iron supplements and vitamins that contain iron, calcium supplements, antacids containing magnesium and aluminum and certain cholesterol and ulcer medications ect., that are known to stop your body from assimilating levothyroxine.
Antioxidants do not have such an effect but there is no a proper study for the above mentioned antioxidants.
Anyway, you do not have to stop taking your supplements or other medications, but you must wait four hours after taking levothyroxine to avoid any potential interactions.

Hope the information will help.
Best wishes,
Dr.mirjeta

Above answer was peer-reviewed by : Dr. Raju A.T