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': 'Oxytocin causes all except - \nSelect and explain. \nA. Lactogenesis, B. Milk ejection, C. Contraction of uterine muscle, D. Myoepithelial cell contraction', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Lactogenesis Impoant actions of oxvtocin are : Contraction of uterine smooth muscle (directly by acting on GPCR and indirectly by release of PG and LTs). Milk ejection by contraction of myepithelial cells surrounding mammary alveoli. At high concentration; anti-diuretic and vasopressor action can be seen. Note : Lactogenesis is the action of prolactin (not oxytocin).", 'role': 'assistant'}]