FT3 not improving??

[Klax79]

I know Hashi's usually don't convert well, mine is really not improving much. My symptoms r not that bad yet, coz I caught this problem early. Crazy weight gain & poor recovery after workouts are the main concerns. The nagging pain at my elbow was gone once I started the meds.

Jul'14
FT4 - 13.38 (9.0-19.0)
FT3 - 3.58 (2.63-5.7)
TSH - 6.59 (0.35-4.94)
-> On 5mcg Cytomel + 50mcg T4 in the morning

Sep'14
FT4 - 14.90 (9.0-19.0)
FT3 - 3.60 (2.63-5.7)
TSH - 2.14 (0.35-4.94)

Doc seems pretty happy with the ratio. I agreed that my FT4 is in the good range now but FT3 still quite ****** (it technically didn't "budge" at all). She's maintaining the T4 dosage & I managed to convince her to up the T3 (she prescribed 7.5mcg).

Looking at the results, my body's not converting any more FT3 with the increase in FT4. Is splitting Cytomel dosage the only way? I've never really asked abt NDT meds coz she wasn't really keen during my 1st visit. Any other possible reasons for the poor conversion? I'm already taking 200mcg Selenium & doc seems surprised that this is not even helping.

[Klax79]

Not tested for Vit D & B12, though I've been taking these supps myself for a while. Doc will b testing for DHEA on the next visit.

[gimel]

One possible reason for the poor conversion is low ferritin (iron).  For women ferritin is recommended as 80 minimum.  Have you been tested for ferritin?  Also, hypo patients are frequently too low in the ranges for Vitamin D, and B12.  Have you tested for those?  

No good reason to give up on Cytomel and switch to NDT.  You can split the Cytomel to get the amount you want for the morning and afternoon doses.