N02AANatural opium alkaloids
- morphineN02AA01
- opiumN02AA02
- hydromorphoneN02AA03
- nicomorphineN02AA04
- oxycodoneN02AA05
- dihydrocodeineN02AA08
- papaveretumN02AA10
- oxymorphoneN02AA11
- morphine, combinationsN02AA51
- hydromorphone and naloxoneN02AA53
- oxycodone and naloxoneN02AA55
- oxycodone and naltrexoneN02AA56
- dihydrocodeine, combinationsN02AA58
- codeine, combinations excl. psycholepticsN02AA59
- codeine, combinations with psycholepticsN02AA79