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 drug which blocks both H1 and 5 HT2 receptor is : 
Select and explain. 
A. Phenoxybenzamine, B. Cyproheptadine, C. Ritanserin, D. Ondansetron
B: Cyproheptadine
Answer: B: Cyproheptadine 
Explanation: None