|
Opioids (N02A) |
|
Opiate
derivatives |
|
Whole Opium
Preparations
|
|
|
|
Natural Opiates
|
|
|
|
Semisynthetics
|
|
|
|
Opiate metabolites
|
|
|
|
| Morphinans |
|
|
| Benzomorphans |
|
|
| 4-Phenylpiperidines |
|
|
Open Chain
Opioids |
|
Amidones
|
|
|
|
Methadols
|
|
|
|
Moramides
|
|
|
|
Thiambutenes
|
|
|
|
Phenalkoxams
|
|
|
|
Ampromides
|
|
|
|
Others
|
|
|
|
| Anilidopiperidines |
|
|
Oripavine
derivatives |
|
|
| Phenazepines |
|
|
| Pirinitramides |
|
|
| Benzimidazoles |
|
|
| Indoles |
|
|
| Diphenylmethylpiperazines |
|
|
| Opioid Peptides |
|
|
| Others |
|
|
| Narcotic Antagonists |
|