This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Pharmacology
All of the following drugs causes hirsutism except: 
Select and explain. 
A. Phenytoin, B. Flutamide, C. Norethindrone, D. Danazol
B: Flutamide
Answer: B: Flutamide 
Explanation: Phenytoin has various adverse effects like hirsutism, hyperglycemia, osteomalacia, gum hyperplasia etc Norethindrone a progestin derivative has various adverse effects like breast enlargement, hirsutism, and hyperglycemia. Danazol is an antiandrogen with side effects like hirsutism, amenorrhea etc Flutamide is androgen receptor antagonist. Hirsutism occurs due to excess testosterone like effects .so this effect is not seen with antiandrogen like flutamide. ESSENTIAL of medical PHARMACOLOGY SEVENTH EDITION-KD TRIPATHI Page:413,414,301,858,318