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: Pharmacology
[{'content': 'The therapeutic advantage that pencillin V has over\npencillin G is: \nSelect and explain. \nA. More reliable oral absorption, B. Greater resistance to pencillinase, C. Slower renal excretion, D. Broader antibacterial spectrum', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ACID-RESISTANT\xa0 ALTERNATIVE\xa0 TO PENICILLIN-G\xa0\nPhenoxymethyl penicillin (Penicillin V)\xa0\nIt\xa0differs\xa0from\xa0PnG\xa0only\xa0in\xa0that\xa0it\xa0is\xa0acid stable.\xa0Oral\xa0absorption\xa0is better;\xa0peak\xa0blood level\xa0is\xa0reached\xa0in\xa01\xa0hour\xa0and\xa0plasma\xa0 t½\xa0 is 30-60 minutes.\nThe\xa0antibacterial spectrum\xa0of penicillin\xa0V\xa0is identical\xa0to\xa0PnG,\xa0but\xa0it\xa0is\xa0about\xa01/5\xa0as\xa0active against\xa0Neisseria,\xa0other\xa0gram\xa0negative\xa0bacteria and\xa0anaerobes.', 'role': 'assistant'}]