Dr. Barnes recommends patients take a desiccated glandular (derived from pigs) prescription medication known as Armour Thyroid, which was used before synthetic medications such as Synthroid were introduced. Armour Thyroid and other prescription thyroid glandulars (including Westhroid), contain both T4 and T3.
Synthroid and other synthetic thyroid medications contain T4 only. Since some individuals have a difficult time converting inactive T4 to active T3, these medications may not work at the cellular level. Individuals may take T4 medications for years and never notice much improvement. Their blood tests look good, but in the mean time they’re falling apart; gaining weight, having more aches and pains, battling one sinus infection after another, and becoming more and more fatigued, depressed, and withdrawn. Research is validating what many doctors including Dr. Barnes has been advocating for years, a combination of T4 and T3 therapy is superior to synthetic T4 therapy alone.