This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pharmacology
Orally active hormone is 
Select and explain. 
A. TSH, B. Thyroxine, C. GH, D. Prolactin
B: Thyroxine
Answer: B: Thyroxine 
Explanation: Levothyroxine is an orally active hormone- T4 given daily on empty stomach in doses of 12.5, 25, 50,75 or 100 mcg depending on the clinical condition of hypothyroidism REF KD Tripathi 8th ed