<prompt> Alprostadil is used forErectile dysfunctionPulmonary hypeensionPDACritical limb ischemia  <response>: 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 