Do Tedanafil And Dutasteroid Interfere With Each Other?

Hi doc I go through Prostrate enlargement surgery by laser operation on 12th jan 2015. Dr told me take Dutasteriod for a pro of three month.i have problem of E D and P E , for this he gave medication dura last 30mg and Tedafil 10 mg whenever needed. Is there any medical interaction between Tedanafil and Dutasteriod.