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
All of the following are side effects of ropinirole except - 
Select and explain. 
A. Sedation, B. Nausea, C. Retroperitoneal fibrosis, D. Hallucination
C: Retroperitoneal fibrosis
Answer: C: Retroperitoneal fibrosis 
Explanation: Ans. is 'c' i.e., Retroperitoneal fibrosis o Ropinirole can cause nausea, sedation, hallucinations, constipation and ohostatic hypotension.