Myxedema coma requires emergency medical treatment. The drug half-life of levothyroxine is six to seven days, which means it takes about four to five weeks for your body to be completely rid of ...

Myxedema coma: use IV levothyroxine. Adults: Monitor TSH 6–8 weeks after dose change then every 6–12 months when stable. Peds: Monitor TSH and total or free-T4 at 2 and 4 weeks after ...