Re: Half life of T3 anyone?

[Guest guest]

For euthyroid people at the correct dose, the half life is about 24

hours. A few hours long or short depending on if one is hypo, or hyper.

Steve

flatwoodfarms wrote:

> reposting:

>

> I vaguely remember some discussion here within the last few months

> about the half life of T3 in humans being longer than most Docs are

> saying it is. I'd like to take some documentation to my Doctor to

> show her that it's longer than 6 hours.

> I'm sick of her telling me to take my Cytomel twice a day. I take

> it

> once in the morning and it's completely cleared away my late night

> heart symptoms; proof to me that it's active far longer than 6

> hours.

> My Doc is open minded, and any good solid information may help her

> treat others correctly.

>

> Marla

--

Steve - dudescholar4@...

Take World's Smallest Political Quiz at

http://www.theadvocates.org/quiz.html

" If a thousand old beliefs were ruined on our march

to truth we must still march on. " --Stopford

[Guest guest]

Thank you for this response, but do you know where i could find this

info in print? To show to my Doctor?

> > reposting:

> >

> > I vaguely remember some discussion here within the last few

months

> > about the half life of T3 in humans being longer than most

Docs are

> > saying it is. I'd like to take some documentation to my

Doctor to

> > show her that it's longer than 6 hours.

> > I'm sick of her telling me to take my Cytomel twice a day. I

take

> > it

> > once in the morning and it's completely cleared away my late

night

> > heart symptoms; proof to me that it's active far longer than 6

> > hours.

> > My Doc is open minded, and any good solid information may help

her

> > treat others correctly.

> >

> > Marla

>

> --

>

> Steve - dudescholar4@...

>

> Take World's Smallest Political Quiz at

> http://www.theadvocates.org/quiz.html

>

> " If a thousand old beliefs were ruined on our march

> to truth we must still march on. " --Stopford

>

[Guest guest]

It took me a while to re " discover " where I had found this information.

If one were to do a google search with the following keywords " cytomel

OR triiodothyronine OR t3 half life " one can discover a ton of

?information " with half life info that runs from 8 hours to 2.5 days.

However, the information I finally went with is from the drugs.com web site:

Thyroid Hormones (Systemic)

http://www.drugs.com/mmx/liothyronine-sodium.html

Scan down the post until you get to the header " Absorption " while will

give you an absorption of about 95% for t3 (empty stomach no required).

Then, two sections later under " Half-life " it gives the following:

Liothyronine:

Euthyroid: 1 day.

Hypothyroid: 1.4 days.

Hyperthyroid: 0.6 day.

However, just to add to the " information " , on drugs.com they also have

the following for Cytomel, a brand of T3.

http://www.drugs.com/pro/cytomel.html

Under the section " Pharmacokinetics " , it gives a biological half-life of

2.5 days. I find different biological half-lives touted from time to

time where some of the breakdown products that are also biologically

active are also considered as part of the half-life. In my experience,

this way of determining half-life is quite inconsistent across

" credible " information sources.

Steve

flatwoodfarms wrote:

> Thank you for this response, but do you know where i could find this

> info in print? To show to my Doctor?

>

>

>>> reposting:

>>>

>>> I vaguely remember some discussion here within the last few

> months

>>> about the half life of T3 in humans being longer than most

> Docs are

>>> saying it is. I'd like to take some documentation to my

> Doctor to

>>> show her that it's longer than 6 hours.

>>> I'm sick of her telling me to take my Cytomel twice a day. I

> take

>>> it

>>> once in the morning and it's completely cleared away my late

> night

>>> heart symptoms; proof to me that it's active far longer than 6

>>> hours.

>>> My Doc is open minded, and any good solid information may help

> her

>>> treat others correctly.

>>>

>>> Marla

>> --

>>

>> Steve - dudescholar4@...

--

Steve - dudescholar4@...

Take World's Smallest Political Quiz at

http://www.theadvocates.org/quiz.html

" If a thousand old beliefs were ruined on our march

to truth we must still march on. " --Stopford