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
The commonest side-effect of Cisapride is - 
Select and explain. 
A. Abdominal cramps, B. Diarrhea, C. Headache, D. Convulsions
B: Diarrhea
Answer: B: Diarrhea 
Explanation: Ans. is 'b' i.e., Diarrhea Cisapride is a prokinetic agent and often produces loose stools (diarrhea is thus the commonest side effect)