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': 'Ergometrine is commonly used for : \nSelect and explain. \nA. PostPartum Hemorrhage, B. To shorten  2nd stage of labour, C. Dysmenorrhea, D. Toxemia of pregnancy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Obstetric indications of ergometrine (Ergonovine):\n\nTo control and prevent Postpartum hemorrhage. It is given at the time of delivery of the anterior shoulder.\nAfter Caesarean Section/instrumental delivery - to prevent uterine atony.\nTo ensure normal involution in multipara.', 'role': 'assistant'}]