出典:Wiktionary
出典:『Wiktionary』 (2025/06/03 15:24 UTC 版)
levothyroxine (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/12 09:01 UTC 版)
Levothyroxine, also L-thyroxine, synthetic T4, or 3,5,3',5'-tetraiodo-L-thyronine, is a synthetic form of thyroxine (thyroid hormone), used as a hormone replacement for patients with thyroid problems. The natural hormone is chemically in the chiral L-form, as is the pharmaceutical agent. Dextrothyroxine (D-thyroxine) briefly saw research as an anticholesterol agent but was pulled due to cardiac side-effects.