Optimum News 12 Newsday.com MSG Varsity Explore LI AM New York Optimum Autos Optimum Homes

Viagra

Newsday's coverage

  • At holiday time, Ingrid finally gets a home

    Little Shelter President Maryann Chernovsky. A veterinarian diagnosed the dog with heart failure and heartworms, and recommended Viagra, a drug initially developed to treat human heart disease because it increases blood flow before it became better known for   Read more »

Around the web

More from around the web »

About Viagra

Sildenafil citrate, sold as Viagra, Revatio and under various other trade names, is a drug used to treat erectile dysfunction and pulmonary arterial hypertension (PAH). It was developed and is being marketed by the pharmaceutical company Pfizer. It acts by inhibiting cGMP specific phosphodiesterase type 5, an enzyme that regulates blood flow in the penis. Since becoming available in 1998, sildenafil has been the prime treatment for erectile dysfunction; its primary competitors on the market are tadalafil (Cialis) and vardenafil (Levitra).

from Wikipedia