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': 'Which laxative acts by opening of Chloride channels ? \nSelect and explain. \nA. Docusate, B. Anthraquinone, C. Lubiprostone, D. Bisacodyl', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Lubiprostone o Lubiprostone is used for chronic constipation, it acts by - o Stimulating Cl- channel opening in the intestine. Increasing liquid secretion in gut. Decreasing transit time.", 'role': 'assistant'}]