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Pharmacological aspects of erectile dysfunction.

John A Thomas1

  • 1Department of Pharmacology & Toxicology, University of Texas Health Science Center, San Antonio 78284, USA. JAT-TOX@SWBell.net

Japanese Journal of Pharmacology
|July 18, 2002
PubMed
Summary

Erectile dysfunction (ED) affects about half of men aged 40-70. Various treatments, including oral and local agents, offer effective options for managing ED by targeting its complex causes.

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Area of Science:

  • Urology
  • Pharmacology
  • Andrology

Background:

  • Erectile dysfunction (ED) is highly prevalent, affecting approximately 50% of men aged 40-70.
  • ED has multifactorial etiologies, including vasculogenic, neurogenic, hormonal, psychogenic, and drug-related causes.
  • Penile erection is a complex neurovascular event influenced by central nervous system (CNS), local factors, psychological, and hormonal elements.

Purpose of the Study:

  • To review significant advances in the pharmacologic treatment of erectile dysfunction (ED).
  • To discuss various therapeutic agents with central and local mechanisms of action for ED.
  • To highlight the importance of neural modulation and endocrine status in ED pharmacotherapy.

Main Methods:

  • Review of pharmacological agents for erectile dysfunction (ED).
  • Categorization of treatments based on mechanism of action (central vs. local) and administration route (oral vs. non-oral).
  • Discussion of specific drug classes and examples, including phosphodiesterase type V inhibitors, hormonal therapies, and vasodilators.

Main Results:

  • Significant advances have yielded orally effective treatments for ED.
  • Centrally-acting agents like apomorphine and locally-acting agents like sildenafil (PDE V inhibitor) are effective.
  • Other therapeutic options include transdermal testosterone, alprostadil, papaverine, phentolamine, and trazodone, with potential drug interactions noted.

Conclusions:

  • Multiple pharmacological agents with diverse mechanisms are available for treating erectile dysfunction (ED).
  • Treatment selection depends on the underlying etiology and patient-specific factors.
  • Understanding drug interactions is crucial for safe and effective ED pharmacotherapy.

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