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
Patient on risperidone may have 
Select and explain. 
A. Weight loss, B. Neuroleptic malignant syndrome, C. Hypopigmentation, D. Prolactin deficiency
B: Neuroleptic malignant syndrome
Answer: B: Neuroleptic malignant syndrome 
Explanation: Adverse effects of Risperidone: Weight gainHyperpigmentationRise in prolactin levelsNeuroleptic malignant syndromeRef: Harrison's 18/e Page no: 144, 3333