This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
[{'content': 'Patient on risperidone may have \nSelect and explain. \nA. Weight loss, B. Neuroleptic malignant syndrome, C. Hypopigmentation, D. Prolactin deficiency', 'role': 'user'}, {'content': "Answer: B \nExplanation: Adverse effects of Risperidone: Weight gainHyperpigmentationRise in prolactin levelsNeuroleptic malignant syndromeRef: Harrison's 18/e Page no: 144, 3333", 'role': 'assistant'}]