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: Gynaecology & Obstetrics
[{'content': 'Which of the drug is not comonly used in PPH? \nSelect and explain. \nA. Mifepristone, B. Misoprostol, C. Oxytocin, D. Ergotamine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Atonicity is the most common cause of PPH. Any drug which increases the tone of uterus or the force of contraction is used to control PPH and is called oxytocic.\nCommonly used oxytocics in the management of PPH are:\n\nOxytocin\nMethergin\nSyntometrine – oxytocin + methergin\n15 methyl PGF2a (carboprost)\nMisoprostol (PGE1)', 'role': 'assistant'}]