OPIOID ANALGESIC

RELATED STRUCTURAL GROUP

MORPHINE-RELATED STRUCTURE
WITH  6- HYDROXYL GROUP

Alfentanyl

Meperidine

-

Anileridine

Meperidine

-

Codeine

Morphine

Yes

Fentanyl

Meperidine

-

Hydromorphone

Morphine

No

Levorphanol

Morphine

No

Meperidine

Meperidine

-

Methadone

Diphenylheptane

-

Morphine

Morphine

Yes

Oxycodone

Morphine

No

Pentazocine

Benzomorphan

-

Propoxyphene

Diphenylheptane

-

Remifentanil

Meperidine

-

Sufentanyl

Meperidine

-