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': "Carboprost, used for 2' trimester aboion, is analogue of ? \nSelect and explain. \nA. PGE2, B. PGF2a, C. PGI2, D. PGD2", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., PGF2aCarboprost is a synthetic prostaglandin analogue of PGF2a (specifically, it is 15-methyl-PGF2a) with oxytocic propeies.Carboprost induces contractions and can trigger aboion in early pregnancy. It also reduces postpaum bleeding.", 'role': 'assistant'}]