PDE5 inhibitors: are there differences?

  title={PDE5 inhibitors: are there differences?},
  author={Culley Carson},
  journal={The Canadian journal of urology},
  volume={13 Suppl 1},
The introduction of oral agents for the treatment of erectile dysfunction (ED) has revolutionized the treatment of men with erection problems of all severities and etiologies. Sildenafil, available on the world market since 1998 was joined in 2003 by tadalafil and vardenafil as effective save and reliable oral agents. While these agents share the method of action in common and are all contraindicated with nitrate medications, these are differences among the three agents. Sildenafil has the… CONTINUE READING