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
Which of the following adverse effects characteristically associated with methysergide ? 
Select and explain. 
A. Pulmonary hypertension, B. Retroperitoneal fibrosis, C. Hepatotoxicity, D. Ischemic heart disease
B: Retroperitoneal fibrosis
Answer: B: Retroperitoneal fibrosis 
Explanation: None