The little blue pill is a decade old.
Viagra, the diamond-shaped pill, was the first oral treatment for impotence (or erectile dysfunction) and changed the lives of millions of men and women around the world.
The medicine turned a debilitating psychological disorder into an easily treatable physical one.
The US Food and Drug Administration approved the drug on March 27, 1998, the official birthday of the blue pill.
Image: Pills of the drug Lipitor (R) made by Warner-Lambert, and Viagra (L) made by Pfizer. Pfizer bought Warner-Lambert Co. in a deal that creates the world's second largest pharmaceutical company. | Photograph: Chris Hondros/Getty Images
Also read: 10 things to know about Jaguar-Land Rover