prostacyclin agonist which is usually given oral.: (A) Teleprost, (B) Iloprost, (C) Riociguat, (D) Selexipag
Answer is D. * Selexipag is the only PGI2 drug which can be given oral route * Prostacyclin analogue like iloprost, treprostinil can be given i/v or s.c or inhaltional route.