Tags: Drug.
Methorphan comes in two isomeric forms each with differing pharmacology and effects: Dextromethorphan – An over-the-counter cough suppressant as well as dissociative hallucinogen. Levomethorphan – A potent opioid analgesic that was never clinically developed.Racemethorphan refers to the racemic mixture of both of these stereoisomers.
