A second competitor to Viagra -- dubbed "le weekend pill" in France -- should hit the nation's pharmacies by early December.

Eli Lilly and Co. and partner Icos Corp. plan "a very fast and aggressive" launch to Cialis after winning Food and Drug Administration marketing approval of the long-lasting erectile dysfunction drug on Friday, said Matthew Beebe, Lilly's brand team leader for Cialis

Cialis' main selling points: It works for up to 36 hours after being swallowed and can be taken with or without food. Viagra, the world's first male impotence pill, has a duration of activity of only a few hours. A third pill, Levitra, which went on the U.S. market in September, is effective for four to eight hours after being taken. Full Story...