Isomethadone

Duration: Once a pharmaceutical drug also known as isoamidone, this opioid analgesic and methadone analogue was withdrawn from the market and is seldom seen today. Rarely abused, though reports state it is around twice as potent as methadone, and more euphoric.
Route	Onset	Duration	After Effects
Tripsit Factsheets
Excerpt from Tripsit Factsheets: http://drugs.tripsit.me/isomethadone
All ROAs:	30-90 minutes	30-40 hours	1-24 hours
Avoid: All other CNS depressants
Effects: Euphoria, Dry Mouth, Mood lift, Itchiness, Relaxant, Constipation, Pupil constriction, Analgesia.

Isomethadone:

A synthetic opioid analgesic and antitussive related to methadone that was formerly used as a pharmaceutical drug but is now no longer marketed.

• A synthetic opioid analgesic and antitussive
• Related to methadone
• No longer marketed
• Was used as both an analgesic and antitussive