This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Medical, surgical and gynaecological illness complicating pregnancy, Subject name: Gynaecology & Obstetrics
[{'content': 'All statements(s) is/are about use of ma sulphate except \nSelect and explain. \nA. Used in spinal anesthesia, B. Used In seizure prophylaxis, C. Decrease neuromuscular blockage, D. Used in Pre-emptive analgesia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Magnessium sulphate have a peripheral action at the neuromuscular junction,by competing with calcium for entry into the cells.It may also have central action. Refer page no 268 of Text book of obstetrics,sheila balakrishnan,2 nd edition.', 'role': 'assistant'}]