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
If a diabetic patient being treated with an oral hypoglycemic agent, develops dilutional hyponatremia-which one of the following could be responsible for this effect - 
Select and explain. 
A. Chlorpropamide, B. Tolazamide, C. Glyburide, D. Glimepiride
A: Chlorpropamide
Answer: A: Chlorpropamide 
Explanation: Ans. is 'a' i.e., Chlorpropamide o Cholorpropamide causes cholestasis, dilutional hyponatremia, intolerance to alcohol (disulfiram like reaction).