This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Orthopaedics
Drug that does not lead to osteoporosis 
Select and explain. 
A. Alcohol, B. Thyroxine, C. Heparine, D. Warfarine
B: Thyroxine
Answer: B: Thyroxine 
Explanation: Drugs leading to osteoporosis - 
Alcohol
Lithium
Anticonvulsants 
Thyroxine
Heparine 
Steroids