This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Osteoporosis, Sex Hormones and OCPs, Subject name: Pharmacology
[{'content': 'Inhibition of spermatogenesis occurs by which of the following given drug ? \nSelect and explain. \nA. Gelusil, B. Gossypol, C. Gestodine, D. Gemcadiol', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Gossypol Nonsteroidal compound MOA :Toxicity on seminiferous epithelium. Reduces sperm motility Libido and potency are not affected S/E : Hypokalemia ,edema, diarrhoea,breathlessness and neuritis', 'role': 'assistant'}]