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Often only TSH gets measured, which doesnt tell us very much about your thyroids functioning
In practical terms, B12 does not significantly change the dosing math
If side effects at a new dose are severe, discuss a temporary dose reduction with your provider
Schvarcz E, Palmr M, Aman J, et al
JACC 84 , 16321642 (2024)
For those not using hormonal contraception, and where appropriate after medical assessment, short-term hormonal treatment may occasionally be considered to regulate the menstrual cycle, though this decision must be individualised and made in consultation with a healthcare professional
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