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: Gynaecology & Obstetrics
[{'content': 'In PCOD which of the following drug is not used for infertility \nSelect and explain. \nA. Clomiphene, B. Tamoxifen, C. Spironolactone, D. Testosterone', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Clomiphene citrate:\xa0\n\nUsed for induction of ovulation; can be 50 mg/day increased to 150mg/day; Starting from day 2 to day 6 of the cycle for 5 days\n\nTamoxifen\xa010 mg daily for 6 months has been effective in treating male infertility\nTestosterone\xa025 -50 mg daily orally improves testicular functions\nSpironolactone\xa0is an antiandrogen; used for treating Hirsutism', 'role': 'assistant'}]