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Table 1 Thyroid parameters with L-1 T4 tablets, with liquid L-T4 formulation, after switching back to L-T4 tablets, and after 6 months of liquid L-T4 therapy

From: Reversible normalisation of serum TSH levels in patients with autoimmune atrophic gastritis who received L-T4 in tablet form after switching to an oral liquid formulation: a case series

  Tablet
L-T4
Liquid
L-T4
Tablet
L-T4
Liquid
L-T4
  L-T4 TSH FT4 FT3 L-T4 TSH FT4 FT3 L-T4 TSH FT4 FT3 TSH
  μg
tablet
μIU/mL ng/dL pg/mL μg
liquid
(months)
μIU/mL ng/dL pg/mL μg
tablet
(months)
μIU/mL ng/dL pg/mL μIU/mL
1 110 9.11 1.37 2.64 110 3.29 1.40 2.85 110 6.31 1.15 2.43 2.17
(1) (2)
2 125 7.8 1.12 2.86 125 4.01 1.23 2.91 125 7.23 1.02 2.76 3.25
(2) (2)
3 100 6.7 1.27 2.34 100 2.12 1.32 2.66 100 4.12 1.55 2.56 1.72
(1) (2)
4 150 8.2 0.97 2.51 150 3.15 1.21 3.12 150 5.67 0.94 2.48 2.46
(2) (2)
5 250 60 0.5 250
(1) 3.8 1.19 2.74 0.04
200
(2) 0.05 1.50 2.83
  1. TSH, normal range 0.3–3.5 μIU/mL; FT4, normal range 0.8–1.7 ng/dL; FT3, normal range 2.3– 4.2 pg/mL