This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mycobacterial Diseases (TB, Leprosy and MAC), Subject name: Pharmacology
[{'content': 'Which of the following is mechanism of action of dapsone? \nSelect and explain. \nA. Inhibit the cell wall synthesis, B. Inhibit the sterol of cell wall, C. Inhibit the protein synthesis, D. Compete with PABA in folic acid synthesis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Dapsone is analogue of PABA Competively inhibits dihyropteroate synthase - decreases folic acid synthesis. It can cause mild hemolysis, anemia and psychosis. Uses: Leprosy Malaria Prophylaxis of pneumocystitis Dermatitis herpetiformis', 'role': 'assistant'}]