Jeg prøvde å google det, men jeg ble ikke noe klokere. Hva er 1-thyroxine?

low-dose, 1-thyroxine supplementation often is overlooked as a therapeutic agent for symptom treatment. The purpose of this exploratory, hermeneutic study was to describe euthyroid individuals' experiences of fatigue and depression before and after low-dose 1-thyroxine supplementation. For women participants, the collective influence of fatigue and depression prior to treatment interfered significantly with their day-to-day lives, despite their euthyroid status.