QN NERVOUS SYSTEM
QN02 ANALGESICS
QN02A OPIOIDS
QN02AA Natural opium alkaloids
QN02AA59 codeine, combinations
Last updated: 2026-02-12
QN NERVOUS SYSTEM
QN02 ANALGESICS
QN02A OPIOIDS
QN02AA Natural opium alkaloids
QN02AA59 codeine, combinations
Last updated: 2026-02-12