Which of the following agent is not used for treatment of erectile dysfunction?: (A) PGE1, (B) Vardenafil, (C) Phenylephrine, (D) Alprostadil
Answer is C. for male impotence: Alprostadil(PG E1) injected into the penis causing an erection lasting for 1-2 hrs oral sildenafil/tadalafil can also be given papaverine, yohimbine can be used though rarely ESSENTIALS OF MEDICAL PHARMACOLOGY;7TH EDITION; KD TRIPATHI; PAGE NO 190