Diampromide is a synthetic narcotic analgesic. It was designed as a methadone analog and hence with a chiral center similar to that of the parent. Diampromide approximates to the potency of pethidine and morphine in mice and rats, respectively. It has been evaluated in postoperative pain. Diampromide is not found in any pharmaceutical preparations sold in the United States. It is under international control according to the UN Single Convention 1961 and its amendments, Schedule I.

Diampromide:
https://drugs.ncats.io/drug/26G7YC77BU

Diampromide:
Synthetic opioid about as potent as morphine. Invented in the 1960's it is highly poisonous.