Domestic market for erectile dysfunction drugs contested by three foreign-invested firms

Following the recent approval of Bayer's Levitra tablet, a new drug for the treatment of erectile dysfunction, the domestic market for erectile dysfunction drugs has emerged as an arena of tripartite competition among three multinational firms: Pfizer's Viagra, Lilly's Cialis and Bayer's Levitra.

Levitra tablet was initially approved from the U.K government last March and has been marketed i...