Surgery General ee8524cf Replacement dose of thyroxine is A 0.1 - 0.2 mg B 0.3 - 0.4 mg C 1 - 2 mg D 3 - 4 mg High-Yield Explanation • Daily replacement dose of thyroxine: 1.6 μg/Kg body weight (0.1-0.15 gm) . • For TSH suppression (in PTC and FTC), dose of thyroxine: 2.7 μg/Kg body weight.