Hello,I have been investigating the above recently via this forum and elsewhere. It concerns me that I take two medications that have an effect on Levothyroxine.
Omeprazole 20mg daily, taken before bed and Propranolol 30mg taken twice daily usually before breakfast and before bed. Levothyroxine, 200mcg, taken as early in the morning as possible with regard to the advice not to take other meds and food/drink within 30-60 minutes.
Is it correct that Omeprazole interferes with the uptake of T4, and would this be on a 24/7 basis? Same question for Propranolol inhibiting the conversion of T4 to T3?
I ask this because this past winter I have felt the cold more than ever before, but it is an internal cold that does not respond to external heat sources. My skin is dry, especially on my hands. Hair is dropping out but this could be due in part to age. My self diagnosis is insufficient T3.
I am on the verge of having blood drawn to test Thyroid function. Should T3 supplementation be advised, and the only route to this is via private prescription, what is the typical cost of say, a minimal dosage for 28 days?
Now, where in the body is the T4 to T3 conversion carried out? If the Liver is involved would the presence of NAFLD further inhibit that conversion?
All of this results from my GP seeking to reduce my T4 intake due to TSH regularly being around 0.1.
Thanks for reading as far as this. I hope you can understand where I am coming from. Any advice or further information would be greatly appreciated.
Eccleston