What to do if Viagra won't do

For those who cannot take or do not respond to Viagra, Levitra, or Cialis, a number of other, often effective treatment options are available.
To continue reading this article, you must login.
  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »