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Hair loss linked to T4/T3
Posted by: Yael
Date: May 8, 2009 8:09 PM

40 years old female. Hair loss 23 years. Diagnosed with hypothyroidism 3 years ago. Started on T4 75 mg. Hair loss stopped but came back 1 year ago. A hormone specialist now has goal to take me off T4 and put me on T3. Goal to reach 90 mcg. Last blood results: TSH: 3.3; Free T3 2.2, free T4 1.6 and Reverse T3 3.3. I started on T3 12.5 mcg. and increased to 37.5 mcg. with T4 37.50 mcg. Disaster. Hyperthyroidism symptoms and huge hair loss. He said I should stop T4 and increase T3 to 50 mcg., 65.50 mcg. and 90 mcg. If I am so defficient in T3, why increasing T3 and reducing T4 creates huge hair loss? The more I increase T3 the more hair loss....Note: 6 weeks ago, I was on T4 75 mg. and T3 12.50 mcg. Hair loss completely stopped but based on above results, doctor said I should stop T4 and only take T3 up to 90 mcg. Question: do you agree that T3 dosage should be increased that high and give up T4 completely? The more T3 the higher the hair loss.



Edited 3 time(s). Last edit at May 11, 2009 10:16 PM by Dr. Kennedy.

Re: Hair loss linked to T4/T3
Posted by: drron
Date: May 10, 2009 1:28 AM

So you have discovered what others have before you, that T4 is better for hair growth. T4 has about 1/8 the activity of T3, and it is also converted to T3 in the liver. You can therefore think of it as a time release form of T3. If giving non-time release versions of T3, the preferred ratio between T4 and T3 is 5:1. I like to give 12 hour time release T3, but in a case needing hair growth I would change that ideology in favor of T4. T3 is measured in micrograms (mcg.) rather than milligrams (mg.). I corrected your notations for our readers.



Edited 1 time(s). Last edit at May 10, 2009 1:29 AM by Dr. Kennedy.

Re: Hair loss linked to T4/T3
Posted by: Yael
Date: May 11, 2009 10:01 PM

Thanks Dr. Your answer helps!

Re: Hair loss linked to T4/T3
Posted by: Yael
Date: May 12, 2009 9:47 PM

I am so confused. My doctor says that I should stop T4 and only take T3....and you say that for hair loss one should take T4 and T3 with a 5:1 ratio. Every website I read on the subject says something similar to what you are saying. I even read that no one should be on T3 alone. I have read a lot of success stories with Armour, yet some doctors say that it is not very good because it comes from porcines and those hormones in Armour are not like human hormones. What are your thoughts on the subject. Do you like Armour or do you prefer bio-identical hormones. Would you recommend Armour for someone like me who sugffers from severe hair loss?



Edited 1 time(s). Last edit at May 15, 2009 4:17 PM by Dr. Kennedy.

Re: Hair loss linked to T4/T3
Posted by: drron
Date: May 15, 2009 4:26 PM

First, I am not recommending anything for you. This is an educational service. If two treatments are safe and appropriate and one works better than the other, I use the one which works. Armour is dessicated cow or pig thyroid. Their hormones are bio-identical to ours. Doctors are always saying things about which they have no knowledge. I find a lot of good uses for time release T3. Hair growth is not one of them.



This Thread has been closed

 




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