So this often requires the addition of a source of T3 to their med, or a switch to a desiccated type like
Armour Thyroid, NatureThroid, NP
Thyroid, etc.
About the only difference among the T4 meds is the amount of fillers, binders, and dyes used in some. Some people find that certain brands affect them. As for what is a better medication, I expect that you will find it easier to reach target levels of FT4 and FT3 by using a desiccated type.