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Take with empty stomach (morning). No food/drink within 30 min after. No vitamin/mineral within 3-4 hours after

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• a.k.a. Levo-thyroxine (T4)

• Doage (ucg):

  $$ 1.5*weight (kg) $$

• Half-life of 1 wk → takes 4-6 wks to reach steady state

  • Change of dose → Check BW in 4-6 wks
  • Monitoring → Q6m/Q12m TSH (< 5)

• In Older Adult > 65 (RF)

  • “Start Slow, Go Slow”
  • Start with 25 ucg → increase by 25 ucg every 4-6 wks