Chasing Merck, Eisai launches insomnia drug Dayvigo in Japan

Chasing Merck, Eisai launches insomnia drug Dayvigo in Japan

Source: 
Pharmaforum
snippet: 

Eisai has launched its insomnia drug Dayvigo in Japan, the second in a new class of medicines after Merck & Co’s Belsomra, which made its debut there in 2014.