Which of the following agent is not used for treatment of erectile dysfunction: (A) Prostaglandin E2, (B) Vardenafil, (C) Phenylephrine, (D) Alprostadil
Answer is C. Phenylephrine is an alpha agonist and will cause vasoconstriction therefore not used in erectile dysfunction where vasodilation of penile vessels is required Other Drugs given in the option are used for this condition For fuher details see chapter 19 Refer kDT 6/e p295-296