Isomethadone was used as both an analgesic and antitussive .
Isomethadone ( INN , BAN ; trade nameLiden ; also known as isoamidone ) is a synthetic opioid analgesic and antitussive related to methadone that was used formerly as a pharmaceutical drug but is now no longer marketed .
analgesic was used as both an analgesic and antitussive .
Isomethadone ( INN , BAN ; trade nameLiden ; also known as isoamidone ) is a synthetic opioid analgesic and antitussive related to methadone that was used formerly as a pharmaceutical drug but is now no longer marketed .