Many impotence drugs compete in over saturated markets.

Under a slogan of "Expand the Market" Chongkungdang has launched a new impotence drug called "Yaila" into the already over saturated market after fully determining that only strategy for a new impotence drug success in the future should explore at the market expansion. The 74 billion won of the impotence market volume in 2006 showed a declining trend.

Since 2003 when Cialis and Levitra enter...