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  1. #1
    JasonR is offline Member
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    Why do doctors treat hypothyroidism with T4 and not T3 ?

    What is the reason for that ? half life ? risk of overdose ?
    Thanks !
    Last edited by JasonR; 11-07-2007 at 02:02 PM.

  2. #2
    Marek is offline New Member
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    It is not uncommon for Doctors to use T4 as the body is supposed to convert the T4 to T3 unfortunately this conversion does not take place for some people.

  3. #3
    MuscleScience's Avatar
    MuscleScience is offline ~AR-Elite-Hall of Famer~
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    T4 is present 4X more than T3, but T3 is 4X more potent. T4 is converted by the targets cells to T3. T3 has a very short serum life in respect to T4. That is usually why T4 is administered in most cases.

  4. #4
    JasonR is offline Member
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    Any reason why I shouldn't replace my T4 for some cytomel ? im taking 200mcg's of this stuff already... 50-100mcg more and it will start to get pricey

  5. #5
    JasonR is offline Member
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    i should have searched
    http://forums.steroid.com/showthread...hlight=CYTOMEL

    its amazing how every single question- even the weirdest has already been asnwered here

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