Dee Dee wrote:
> I'm still a little confused about taking T4. If T4 is converted to T3, which
> negates T3 from working, why take any T4?

I think Greg went into the techie side of this, but basically your confusion
is around the conversion of T4 -- T4 conversion to T3 does not 'negate' T3
from working.  It is the presence of too much REVERSE T3 that can prevent
proper use of T3 in the body.

> Also, I'm taking a French version of Thyrolar, which is presented in mcg.
> How much is 9 grains of Thyrolar, and the ratios?

Thyrolar 1 grain contains 50 mcg of T4 and 12.5 mcg of T3
Ratio of T4:T3 = 4:1

One grain is supposed to be equal to 100 mcg of T4 such as Synthroid or
Levothroid.

Joan McPhee, not an M.D.
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