Alphameprodine (ACSCN 9604) is an opioid analgesic classified by the United States Drug Enforcement Administration under Schedule I of illegal substances. The stereoisomer betameprodine is similarly classified, however alphameprodine is more widely used (both are referred to as Meprodine). Alphameprodine is a structural analogue of meperidine. It exerts physiological effects characteristic of opioids, such as analgesia, euphoria and sedation, as well as itching, nausea, and respiratory depression.

Alphameprodine:
https://drugs.ncats.io/drug/1177I648L1

There are two isomers of meprodine, alpha-meprodine and beta-meprodine, with the alpha isomer having been more widely used.

• Alphameprodine is an isomer of Meprodine
• Meprodine is opioid analgesic
• Meprodine is an analogue of meperidine
• Meprodine is closely related to the drug prodine
• Meprodine exerts physiological effects characteristic of opioids

Betameprodine is an opioid analgesic under international control according to the UN Single Convention 1961. The stereoisomer alphameprodine was more widely used, however, had a similar classification.

Betameprodine:
https://drugs.ncats.io/drug/4XS533X38C

• Betameprodine is an isomer of Meprodine
• Meprodine is an opioid analgesic
• Meprodine is an analogue of pethidine (meperidine)
• Meprodine is closely related to the drug prodine
• Meprodine has similar effects to other opioids

Betameprodine is one of the two isomers of meprodine