Table 2.

Recommended levothyroxine (L-T₄) treatment doses.

Age	Dose (mcg/kg/day)
0–3 months	10–12
3–6 months	8–10
6–12 months	6–8
1–3 years	4–6
3–10 years	3–4
10–15 years	2–4
>15 years	2–3
Adult	1.6–1.8