This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autonomic nervous system, Subject name: Pharmacology
Alprostadil is used for 
Select and explain. 
A. Erectile dysfunction, B. Pulmonary hypeension, C. PDA, D. Critical limb ischemia
A: Erectile dysfunction
Answer: A: Erectile dysfunction 
Explanation: Ref: HL Sharma 3rd ed pg no: 370 alprostadil - PGE1 analog used for erectile dysfunction -produces vasodilatation if it is used for PDA, It could lead to ductus fragility and rupture